In pea plants, tall (T) plants are dominant over short (t) plants. This means that if a plant has at least one dominant allele (T), it will be tall. A plant will only be short if it has two recessive alleles (tt).
a. TT x tt:
| T | T |
---|---|---|
t | Tt | Tt |
t | Tt | Tt |
The phenotypic ratio of the offspring will be 4:0 (all tall).
b. Tt x tt:
| T | t |
---|---|---|
t | Tt | tt |
t | Tt | tt |
The phenotypic ratio of the offspring will be 2:2 (or 1:1, half tall and half short).
c. Tt x Tt:
| T | t |
---|---|---|
T | TT | Tt |
t | Tt | tt |
The phenotypic ratio of the offspring will be 3:1 (three tall and one short).
The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram. It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a specific genotype.
The genetic makeup of sperm and ova, the sex cells or gametes used in conception, determines the genotype of a kid. From each parent came one sex cell. Normal sex cells only have one copy of each gene for each characteristic (e.g., one copy of the T or t form of the gene in the example above).
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Using corn for energy is an example of
Answer:
biomass
Explanation:
Corn is a renewable resource. That means we can grow more if we need more.
why do plant cells contain organelles that are not found in animal cells?
Answer:
However, plant cells and animal cells do not look exactly the same or have all of the same organelles, since they each have different needs. For example, plant cells contain chloroplasts since they need to perform photosynthesis, but animal cells do not
Explanation:
the correct answer would be D) Plants need specialized organelles to perform photosynthesis.
OA. Pill bugs, crickets, and grass
OB. Flies, crickets, and marigolds
C. Grass, pill bugs, and marigolds
D. Pill bugs, crickets, and flies
An isopod, often known as a terrestrial crustacean, is a type of non-insect arthropod and is the scientific name for the pillbug, Armadillidium vulgare (Latreille).
What other names are given to pill bugs?When I was a child, I named them pill bugs, while other people called them potato bugs. They may also go by the names tomato bugs, sow bugs, wood bugs, armadillo bugs, doodle bugs, roly-polies, carpenters, or boat builders in the United States and Canada.
Do pill bugs pose a threat?There are no known risks that pill bugs bring to people. They don't spread disease or taint food. Due to its propensity to roll into a ball when disturbed, it is frequently referred to as a roly-poly.
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All microbes __________________ no matter where a microbe is located in a human body.
a
swim
b
digest
c
protect
d
grow
Answer:
D. grow
Explanation:
Microbes inhabit just about every part of the human body, living on the skin, in the gut, and up the nose. Sometimes they cause sickness, but most of the time, microorganisms live in harmony with their human hosts, providing vital functions essential for human survival.
1. Flask a contains yeast in a glucose broth and all other nutrients necessary nutrients to support growth. The flask is exposed to the atmosphere. Flask b also contains yeast in a glucose broth with all other necessary nutrients but the flask is tightly sealed, creating an anaerobic environment. Answer the following, assume that the yeast culture is facultative anaerobic. A) in which flask would there be more dell division over a period of time. B) in which flask would ethanol be found after 72 hours? c) in which flask would the generation time (time it takes for a microbial population to reproduce) be shorter? d) in which flask would the yeast be able to produce greater amounts of atp? 2. What exactly is meant when we say that, in aerobic respiration, oxygen is the final electron acceptor?
1/A) Flask A would have more cell division over a period of time as the presence of atmospheric oxygen would allow for aerobic respiration, which yields more ATP, and thus promotes faster cell growth and division.
B) Ethanol would be found in Flask B after 72 hours, as anaerobic respiration produces ethanol instead of carbon dioxide as the final product.
C) The generation time would be shorter in Flask A as aerobic respiration provides more energy for cell division than anaerobic respiration.
D) The yeast in Flask A would be able to produce greater amounts of ATP as aerobic respiration produces more ATP per glucose molecule than anaerobic respiration.
2)In aerobic respiration, oxygen is the final electron acceptor, which means that it is the molecule that accepts electrons at the end of the electron transport chain, which is the final stage of aerobic respiration.
1/A) The flask with the yeast in the glucose broth and exposed to the atmosphere (Flask A) would likely have more cell division over a period of time. This is because yeast is a facultative anaerobe, which means that it can carry out fermentation in the absence of oxygen, but it can also use oxygen for cellular respiration. In the presence of oxygen, yeast can generate more ATP through aerobic respiration, which allows for more efficient cell division.
B) The flask, which is firmly sealed and produces an anaerobic environment, would probably contain ethanol (Flask B). This is due to the fact that yeast can carry out fermentation without oxygen, which results in the production of ethanol as a byproduct.
C) With the flask with the yeast in the glucose broth and exposed to the environment, the generation time would probably be shorter (Flask A). This is due to the fact that, as was already said, yeast can produce more ATP through aerobic respiration when oxygen is present, which enables more effective cell division and a faster generation time.
D) The yeast would be able to produce greater amounts of ATP in the flask with the yeast in the glucose broth and exposed to the atmosphere (Flask A). This is because aerobic respiration is more efficient than fermentation at generating ATP. In the presence of oxygen, yeast can generate more ATP through aerobic respiration, which allows for more efficient cell division and higher ATP production.
2) In aerobic respiration, electrons are passed through a series of electron carriers, ultimately to oxygen. Oxygen accepts these electrons and combines with hydrogen ions to form water. This process, called oxidative phosphorylation, generates a proton gradient across the mitochondrial inner membrane, which drives the production of ATP via ATP synthase.
Therefore, oxygen acts as the final electron acceptor in aerobic respiration, and its reduction to water allows for the production of ATP.
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A single species of squirrel evolved over time into two species, each on opposite sides of the Grand Canyon. What can be concluded about the evolution of these two species of squirrels
The evolution of two species of squirrels from a single ancestral species on opposite sides of the Grand Canyon suggests that the ancestral population was geographically isolated by the formation of the canyon, which prevented gene flow between the populations.
What conclusions can be drawn about the evolution of these two squirrel species?
Over time, the populations may have accumulated genetic differences due to mutations, genetic drift, and natural selection, resulting in the development of distinct characteristics and traits that eventually led to the formation of two separate species.
This process of speciation through geographic isolation is known as allopatric speciation and is one of the most common mechanisms of speciation in the natural world. Therefore, the evolution of two squirrel species on opposite sides of the Grand Canyon is consistent with the process of allopatric speciation.
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SOMEONE, PLEASE HELP ME!!!!! Identify the structures of the male reproductive system using the drop-down menus. Options are testes, scrotum, pe!is, epididymis, vas deferens, seminal vesicles, semen
The Male reproductive system is substantially outside the body.
The male reproductive system consists of numerous organs that play a part in the mortal reproductive process. These organs are located on the outside of the body and in the pelvis.
1) Testes- store, develop and transport sperm.
2) Semen – also called seminal fluid, is an organic liquid used to store sperm.
3) Scrotum- protects the testicles.
4) Pe!is- an external manly organ that acts intermittently in addition to the urinary tract.
5) Epididymis — Narrow, tightly curled tube attached to each testicle
6) Vas Deferens- it is the sperm duct
7) Seminal vesicles- produce the fluid that nourishes the sperm.
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Do you think that manual methods are better than the computer-generated eigen-vector techniques for classifying climates? Why or Why not?
To identify climates, I do believe that human approaches are superior to computer-generated eigen-vector techniques.
When employed for response-spectrum or time-history investigations based on modals, Ritz vectors can serve as a more reliable foundation than Eigenvectors. Eigenvectors are unit vectors whose length or magnitude is 1. Right vectors, which just means a column vector, is another name for them that is frequently used.
The length or size of an eigenvector is determined by its eigenvalues, which are coefficients applied to the vectors. Eigenvalues and, occasionally, eigenvectors are used in several matrices-based applications in engineering and research. Just a few of the application fields include quantum mechanics, control theory, advanced dynamics, and vibration analysis.
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What can you conclude about the trait shown in this pedigree?
A. The trait is autosomal and dominant.
B. The trait is X-linked and recessive.
C. The trait is X-linked and dominant.
D. The trait is Y-linked and dominant.
Explain why the death of the pond snail caused the concentration of carbon dioxide to increase after day 10
Answer: snail is being decayed by decomposers, therefore respiration of decomposers releases C02.
Explanation:
10. Which of the following statements best explains the role heat flow has in changing Earth's surface?
A. Earthquakes occur when heat from the sun moves the crust.
B. Volcanoes form when convection in the mantle pushes one tectonic plate under another.
C. Tectonic plates move when the lithosphere cools.
D. Volcanoes erupt when the crust is moved by the convection of Earth's inner and outer cores.
Answer:
D. Volcanoes erupt when the crust is moved by the convection of Earth's inner and outer cores.
Explanation:
The solid crust of Earth serves as a heat insulator for the planet's warm interior. The molten rock in the mantle, below the crust, is known as magma. Convection currents are created by the intense heat and pressure that exists within the earth. The tectonic plates that make up the earth's crust shift as a result of these currents.
Which is NOT a function of the urinary system?
Which is NOT a function of the urinary system?
Makes, stores, and secretes urine from the body.
a. Regulate pH balance in the body
b. Regulate blood pressure
c. Regulate fecal waste removal from the body.
d. Secretes erythropoietin which causes the body to make more red blood cells.
e. Regulate mineral ion concentrations
Option c. Regulate fecal waste removal from the body is NOT a function of the urinary system.
What is a major function of the urinary system?A major function of the urinary system includes the removal of waste products through urine instead of fecal removal which corresponds to a function of the digestive system that also removes wastes through this pathway.
Therefore, with this data, we can see that a major function of the urinary system includes the removal of waste by means of a process called removal by urination.
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What were the genotypes of the puppies in cross #1? Why were there nog equal numbers of chocolate and black puppies
The anticipated ratio between black and chocolate puppies is 12:4 or 3:1.
The genotypes of the puppies in cross #1 would depend on the genotypes of the parents. However, assuming that both parents were heterozygous for the black and chocolate coat color genes (BbCc x BbCc), the genotypes of the puppies would be:
9/16 would be black with the genotype BbCc or BbCC
3/16 would be black with the genotype bbCc or bbCC
3/16 would be chocolate with the genotype Bbcc
1/16 would be chocolate with the genotype bbcc
The unequal numbers of chocolate and black puppies in cross #1 may be due to chance. The ratio of black to chocolate puppies is 12:4 or 3:1, which is the expected ratio based on the Punnett square. However, in any given litter, the actual numbers may deviate from the expected ratios due to random chance.
Additionally, some coat colors may be more desirable to breeders or buyers, which could influence the selection of breeding pairs and ultimately the frequencies of coat colors in the population.
In light of the Punnett square, the ratio of black to chocolate puppies is therefore 12:4, or 3:1.
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coat color in rabbits is inherited by multiple alleles for a single gene. would it be possible to obtain a white rabbit if one parent is white and the other is himalayan? yes, if the genotype of the himalayan parent rabbit is chc. yes, if the genotype of the himalayan parent rabbit is chch. no, because the ch allele is dominant to the c allele. no, because the c allele is dominant to the ch allele.
Yes, it is possible to obtain a white rabbit if one parent is white and the other is Himalayan and the genotype of the Himalayan parent rabbit is [tex]C{h}[/tex]c. This is because the [tex]C{h}[/tex] allele is dominant to the c allele, and the white rabbit has two C alleles.
When a Himalayan rabbit is heterozygous ([tex]C{h}[/tex]c) for the coat color gene, the allele combination is expressed as a Himalayan rabbit, but the genotype is a mix of the dominant [tex]C{h}[/tex] allele and the recessive c allele. This means that the heterozygous rabbit carries the recessive c allele, which can be passed on to its offspring.
If the white rabbit is homozygous (cc) for the coat color gene, and the Himalayan rabbit is heterozygous ([tex]C{h}[/tex]c), then there is a 50% chance that the offspring will have a genotype of [tex]C{h}[/tex]c and be a Himalayan rabbit and a 50% chance that the offspring will have a genotype of cc and be a white rabbit.
This is because the [tex]C{h}[/tex] allele is dominant to the c allele, so the heterozygous genotype will always be expressed as Himalayan, but the recessive c allele can be passed on to the offspring.
Therefore, it is possible to obtain a white rabbit if one parent is white and the other is Himalayan, as long as the genotype of the Himalayan parent rabbit is [tex]C{h}[/tex]c.
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4. CONCLUSIONS
A. What did you learn about stream EROSION & DEPOSITION while doing this virtual lab? How
did the following affect the erosion and deposition rates and results in each stream scenario?
a. SLOPE =
b. TERRAIN /=
c. VOLUME =
d. VELOCITY =
e. SIZE OF PEBBLES/SEDIMENTS =
Erosion is the movement of particulate from Point A to Point B by way of wind or water movement.
Deposition is the final resting place of the same particulates at Point B, having moved from Point A. That is, they are deposited at Point B.
The location of Point B is primarily a function of the wind/water velocity and the size of the particle. At a given flow of velocity, bigger heavier particles are deposited first, while smaller and light particles move much further. This is the reason that flood plains are normally clay dominant, given clay is the smallest primary particle of soil (particles: sand>slit>clay).
A: Erosion is more likely to occur on slopes that are longer, steeper, and have smoother surfaces. The slope parameters and rainfall amount together affect the flow speed. There is a larger chance of erosion and sedimentation the quicker the water runs.
B: Mountains may gradually lose their form due to erosion, which is influenced by the flow of water and wind. On the other hand, deposition deposits and/or leaves deposition behind. This may also alter landforms, although deposition builds up surfaces rather than tearing them down.
C: Erosion and deposition are caused by water moving across the Earth's surface or beneath. A steeper slope's water flow travels more quickly and erodes more quickly. The size of the particle affects how it is transported by water.
D: Rapider water flow accelerates erosion. More slowly flowing water erodes materials. The silt being carried may settle out and be repositioned if the water is flowing slowly enough.
E: The water flow, which carries sediment downstream, contributes to the shaping of the planet's surface by transporting eroded material from one area and depositing it in another.
Thank you,
Eddie E.
human skin color is a polygenic trait, involving a minimum of 378 different loci. consider the unlikely situation where a population was homozygous at all of these loci, except for 2. the alleles of these genes have additive and equivalent effects on skin color. in matings between individuals that were heterozygous at these 2 loci (a1a2 b1b2 x a1a2 b1b2), how many different phenotypic categories would be expected in the offspring?
The answer to this question is 4 different phenotypic categories.
This is because each parent has two different alleles (A1 and A2, and B1 and B2), and each allele has an additive effect on skin color. When two heterozygous individuals mate, they will produce offspring with 4 possible phenotypes, A1B1, A1B2, A2B1, and A2B2.
If a population was homozygous at all skin color loci except for two and the alleles of these two genes have additive and equivalent effects on skin color, then the skin color of individuals will depend only on the genotype of these two genes. Let's denote the alleles at these two loci as A and B, where A1 and A2 represent the different alleles at locus A, and B1 and B2 represent the different alleles at locus B.
Since the alleles have additive effects, the skin color of individuals with genotype A1A1B1B1 will be lighter than that of individuals with genotype A1A1B1B2, which in turn will be lighter than that of individuals with genotype A1A1B2B2, and so on.
When individuals that are heterozygous at these two loci (A1A2B1B2) mate, their offspring can inherit any combination of alleles from their parents, resulting in different skin colors. To determine the number of different phenotypic categories expected in the offspring, we can use a Punnett square:
| A1 | A2
---|---|---
B1 | A1B1 | A2B1
B2 | A1B2 | A2B2
From the Punnett square, we can see that there are 4 possible combinations of alleles in the offspring: A1B1, A2B1, A1B2, and A2B2.
Each combination of alleles will result in a different skin color, so there are 4 different phenotypic categories expected in the offspring. Therefore, the answer is 4.
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1. En tu cuaderno, interpreta y describe la evolución de las siguiente cinco especies de carnívoros mediante el árbol filogenético
A phylogenetic tree is a graphical representation of the evolutionary relationships among a set of species or individuals.
Phylogenetic trees can be built using different methods, which are based on different types of data. The most common methods are the comparison of DNA or protein sequences, and the comparison of morphological characters.
It can be considered as a kind of genealogical map of the evolution of a group of organisms. Phylogenetic trees can be built in a variety of ways, using different methods and a variety of data.
Once a phylogenetic tree has been constructed , it can be analyzed in a variety of ways. The tree can be examined to determine which species are closest to each other.
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Full Question:
Analyze the phylogenetic tree and do the activities.
1. In your notebook, interpret and describe the evolution of the following five species of carnivores using the phylogenetic tree.
The five distant planets are made mostly of ____
Answer:
The five distant planets are made mostly of gas.
Explanation:
George rolled four different types of paper into cylinders identical 10 cm rubber bands were placed around the cylinder still hold the paper each number in the answer choices is the diameter of one of the cylinders which cylinder has the rubber band with the greatest elastic potential energy
20 cm. The elastic potential energy is highest for the rubber band attached to the cylinder with the biggest diameter (20 cm), which also has the smallest spring constant.
20 cm. The rubber band linked to the largest diameter (20 cm) cylinder, which also has the smallest spring constant, has the maximum elastic potential energy. Rubber band elastic potential energy is calculated as (1/2)kx2, where k is the rubber band's spring constant and x is the deviation from its equilibrium length. The cylinders' spring constants varied despite being constructed of several types of paper and having the same length. The rubber band on the cylinder with the biggest diameter (20 cm) will have the shortest spring constant and, as a result, the most elastic potential energy since the spring constant of a rubber band is inversely proportional to its length.
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The elastic potential energy of a rubber band depends on its length and how much it is stretched. The longer and more stretched the rubber band is, the greater its elastic potential energy.
Assuming that the rubber bands were stretched by the same amount on each cylinder, the cylinder with the largest circumference (and hence the largest diameter) would have the greatest elastic potential energy. This is because the rubber band on that cylinder would be stretched the most, and hence have the most stored elastic potential energy.
Since the rubber bands were placed around cylinders with a circumference of 10 cm, we can use the formula for circumference (C = 2πr) to find the diameter of each cylinder.
Cylinder 1: C = 10 cm, so 2πr = 10 cm. Solving for r gives r ≈ 1.59 cm. Therefore, the diameter of Cylinder 1 is approximately 3.18 cm.
Cylinder 2: C = 10 cm, so 2πr = 10 cm. Solving for r gives r ≈ 1.59 cm. Therefore, the diameter of Cylinder 2 is approximately 3.18 cm.
Cylinder 3: C = 10 cm, so 2πr = 10 cm. Solving for r gives r ≈ 1.59 cm. Therefore, the diameter of Cylinder 3 is approximately 3.18 cm.
Cylinder 4: C = 10 cm, so 2πr = 10 cm. Solving for r gives r ≈ 1.59 cm. Therefore, the diameter of Cylinder 4 is approximately 3.18 cm.
Since all the cylinders have the same circumference and hence the same length of rubber band, the cylinder with the largest diameter would have the greatest elastic potential energy. However, all the cylinders have the same diameter, so they all have the same elastic potential energy.
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Determine ALL POSSIBLE genotypes
of pea plants with the
following
phenotypes. When
does a phenotype
have more than one
genotype?
The possible genotypes of pea plants are PpYY, PpYy, ppYY, and ppYy.
Explain about the genotypes of pea plants?The idea of dominance was one of Gregor Mendel's major approach to the theory of heredity.
Mendel came to the conclusion that some features predominated over other inherited traits when he noticed that a heterozygote offspring might exhibit the same phenotype also as parent homozygote. Yet, the link between genotype and phenotype is rarely as straightforward as Mendel's dominant and recessive patterns. Biologists started to find a range of correlations between alleles which code for the same feature as the investigation of inheritance went beyond the seven qualities Mendel initially analyzed and also covered creatures other than pea plants. These allelic interactions, which were not solely recessive or dominant, significantly improved our comprehension of how genotype influences phenotype.Thus, the possible genotypes of pea plants are PpYY, PpYy, ppYY, and ppYy.
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Pea plants can have the genotypes PpYY, PpYy, ppYY, or ppYy.
Explain about the genotypes of pea plants?The idea of dominance was one of Gregor Mendel's major approach to the theory of heredity.
Mendel came to the conclusion that some features predominated over other inherited traits when he noticed that a heterozygote offspring might exhibit the same phenotype also as parent homozygote.
Yet, the link between genotype and phenotype is rarely as straightforward as Mendel's dominant and recessive patterns.
Biologists started to find a range of correlations between alleles which code for the same feature as the investigation of inheritance went beyond the seven qualities Mendel initially analyzed and also covered creatures other than pea plants.
These allelic interactions, which were not solely recessive or dominant, significantly improved our comprehension of how genotype influences phenotype.
Thus, the possible genotypes of pea plants are PpYY, PpYy, ppYY, and ppYy.
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HYDROPONICS QUESTION PLEASE HELP, I GIVE BRAINLY!! IT's DUE TODAY
A student has a rose plant that is shorter than normal. Upon close examination, they find small aphids on the new shoots:
The student starts using fertilizers and observes a small improvement. Explain why
The presence of aphids on a rose plant can cause damage to the plant by sucking sap from the new shoots, which can weaken the plant and make it shorter than normal. The damage caused by the aphids can also lead to a reduction in the number of new shoots that grow, which can further contribute to the stunted growth of the plant.
When the student starts using fertilizers, the plant receives an adequate supply of nutrients that it needs to grow and develop properly. This can help to improve the overall health of the plant, which in turn can help it to recover from the damage caused by the aphids. Fertilizers provide essential nutrients such as nitrogen, phosphorus, and potassium that help in the growth and development of the plant.
Additionally, fertilizers can help to improve the soil quality, which can lead to better nutrient absorption by the plant. This can further enhance the plant's ability to recover from damage caused by aphids or any other stressors.
It's important to note that while fertilizers can help improve the growth of a plant, they may not necessarily eliminate the aphids. It's recommended to use an insecticide or other pest control measures to get rid of the aphids in order to protect the plant and promote healthy growth.
Saving resources because people might want use them in the future (example: preserving forests so that our grandkids will have wood to use for construction, paper products, etc.) is a form of conservation. aesthetic biocentric outilitarian fundamental utopian
Answer:
biocentric?
Explanation:
I'm not sure i understand the format of the question.
Saving resources because people might want to use them in the future is a form of utilitarian conservation.
Utilitarian conservation is the idea that resources should be conserved and managed for the greatest good for the greatest number of people over the longest period of time. This includes preserving forests for future generations to use for construction, paper products, and other purposes.
This approach to conservation is often associated with the American conservationist Gifford Pinchot, who advocated for the sustainable use of natural resources for the benefit of society.
As long as there is proof that using particular animals sustainably can help protect entire species or habitats, utilitarian conservation ethics are supportive of this practise. These environmentalists work to safeguard species by utilising market forces and involving local populations.
Therefore, utilitarian conservation is the correct alternative.
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HELP ME
Your muscles help you move, help your organs to move fluids around, and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain, or even paralysis. The causes of muscle disorders can be as simple as a sprain or strain, or as complicated as a genetic disorder or cancer. Many times the specific cause may not be known.
Research one of the muscular disorders listed below or any other that you find. Design a pamphlet or brochure about the disorder and one medication or treatment method used to help those that have the disorder. Include who can be affected by the disorder, how common (or uncommon it is), and how researchers think the medication or treatment will help. Explain its general effectiveness and any side effects the medication or treatment may cause. Remember to cite all your sources.
Myopathy (congenital, muscular, mitochondrial)
Glycogen storage diseases of muscle
Myositis ossifican
Stiff-man syndrome
Tetany
Central core disease
Hypotonia
Multifocal motor neuropath
Myotonia
Sarcopenia
Myoglobinuria
Congenital fiber-type disproportion
Which of the following describes a planet?
Burning ball of gases that emits its own light
Large body of rock that revolves around the sun
Large, round body that revolves around a star
Round object that revolves around a moon
Answer:
Large , round body that revolves around a star
A mitosis inhibitor is a medication that is designed to prevent mitosis in certain cells. Why would these be helpful in treatment of tumors?
"Mitosis inhibitors are used to stop cells from dividing and replicating. Tumors are made up of cells that have uncontrolled growth and division, so mitosis inhibitors can be helpful in the treatment of tumors because they can stop the cells in the tumor from dividing and growing. By preventing the tumor cells from replicating, the growth of the tumor can be slowed down or even stopped, which can be an important step in the treatment of cancer. Some examples of mitosis inhibitors include taxanes, vinca alkaloids, and paclitaxel, which are used in chemotherapy to treat a variety of cancers. However, it's worth noting that mitosis inhibitors can also affect healthy cells that divide rapidly, such as hair follicles and cells lining the gastrointestinal tract, which can cause side effects like hair loss and digestive problems." (ChatGPT, 2023)
What is true of unsaturated fatty acid chains?
A They contain at least one double or triple bond.
B They contain only single covalent bonds.
C They are only made in the liver cells of animals.
D They are less healthy than saturated fats.
Answer:
The correct answer is A
the theory of evolution by natural selection explains each of the following except how . a evolution takes place in the natural world b species can become extinct c inherited traits are passed from parent to offspring d species descend from common ancestors
The theory of evolution by natural selection explains each of the following except how inherited traits are passed from parent to offspring. The correct option is c.
The theory of evolution by natural selection, proposed by Charles Darwin, explains how evolution takes place in the natural world, how species can become extinct, and how species descend from common ancestors.
Evolution by natural selection occurs when individuals with advantageous traits are more likely to survive and reproduce, passing on these traits to their offspring. Over time, these advantageous traits become more common in a population, leading to the evolution of new species.
Extinction occurs when a species is unable to adapt to changing environmental conditions or compete with other species, leading to the death of all individuals and the end of the species.
The theory also explains how different species share a common ancestry, with new species branching off from existing ones over time.
However, the theory of evolution does not explain the mechanism by which inherited traits are passed from parent to offspring. This mechanism is explained by genetics, specifically the study of genes and how they are inherited from parents to offspring through DNA. Hence, c. is the correct option.
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6. Mr. And Mrs. Jones just gave birth to fraternal twins, Bob and Jane. Unfortunately, the nurse has confuse the Jones twins with 4 other babies. The doctors took sample of DNA from each of the babies and Mr. And Mrs. Jones. Which of the 6 babies are Mr. And Mrs. Jones’ twins?
4) Amοng the six children tested, Child 1 and Child 5 are the fraternal twins that are bοrn tο Mr. & Mrs. Jοnes.
DNA fingerprinting is a mοlecular technique that was develοped by Alec Jeffreys which is nοw widely used tο identify an individual frοm the sample οf DNA by lοοking at the unique patterns οf DNA. We knοw that every cell cοntain DNA and the genοme every οrganism share 99.9 % similarities and the rest is unique sequences (ie, abοut 3 milliοn base pairs are different amοng 2 peοple unless they are identical twins). Sο, in DNA fingerprinting, the patterns οf this unique sequences that are develοped after restrictiοn cleavage and subsequent Gel Electrοphοresis are identified tο knοw the relatiοnships between individuals.
Since, an individual has recieved half οf his DNA frοm father and half frοm mοther his DNA sequences will be similar tο them. Sο, here in this questiοn, while checking the fingerprint patterns οf all 6 children, there is a similarity in DNA patterns οf Child 1 and Child 5 with that οf their parents.
All the DNA bands shοwn in bοth child 1 and child 5 are present in either their mοther οr father, which clearly prοves that they are their children. But, when cοmparing the patterns οf οther children, eventhοugh 1 οr 2 bands are the same as that in parents, it dοesnοt accοunt fοr a cοmplete match. This shοws that they have nο relatiοn with the parents.
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Observe the original DNA and mutated DNA below. What type of mutation has occurred?
Original DNA is ATCG and Mutated DNA is ATGGThis is a point mutation, specifically a substitution mutation. In this case, the original cytosine (C) in the second position has been replaced with a guanine (G).
What is DNA ?Deoxyribonucleic Acid (DNA) is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and some viruses. DNA is composed of two strands of nucleotides twisted into a double helix and connected by hydrogen bonds. Each strand is composed of four different types of nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). The information contained within DNA is transferred from one generation to the next by a process of replication.
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How are fish with backbones inside their bodies classified?
Answer:
Vertebrates
Explanation: