Which best describes the first step in genetic engineering? A. Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host. B. All the DNA from a desired organism is isolated to form recombinant DNA for use in a host. C. Different sections of DNA from a desired organism are inserted into a host so that beneficial traits will be expressed. D. One strand of DNA is isolated and inserted into a host so recombinant DNA can be formed.
Answer:
A. Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host.
Explanation:
Genetic engineering, also known as genetic modification, is a technique that involves the manipulation of an organism's genome using biotechnology procedures. The purpose of genetic engineering is to create an organism with desirable traits.
Genetic engineering involves series of steps, however, the very first step is that of DNA EXTRACTION. The fragments of DNA that have desired genes are isolated from the involved organism. The extracted DNA called the recombinant DNA, which is inserted into the host genome.
Answer:
A Fragments of DNA that have desired genes are isolated to form ......
Explanation:
I just took the test
Science 6th grade digital INB- You dont know what parts of the ground are safe and what parts are thin crusts of soil covering fires or sinkholes. Design a system that can access the area and take measurements that show changes in the fire. (No right or wrong answer just need someone to come up with something and quick.)
Answer:
Fire detecting Scanner.
Explanation:
Fire detecting Scanner is a system which has the ability to scan the area and tells the changes occurs in the fire inside the earth crust. This scanner collect all information about the area on the basis of which we can take steps to avoid the damage caused by the fire. With the help of this scanner we can tell that which part is safe and which part of the area is dangerous for people.
Which describes laptops, cell phones, and video game systems that people use every day? obsolete technologies current technologies emerging technologies coexisting technologies
What is the energy change taking place when plants make food in the presence of sunlight?
Potential energy is transformed into kinetic energy.
Kinetic energy is transformed into potential energy.
Chemical energy is transformed into radiant energy.
Radiant energy is transformed into chemical energy.
Answer:
radiant energy is transformed into chemical energy
Explanation:
sunlight is ntg but radiation (UV), Iit falls on leafs surface and with the help of photosynthesis leaf converts radiation to chemical energy
Answer:
The answer would be D
Explanation:
Radiant energy is transformed into chemical energy
Mad scientists Ms. Jones & Ms. Peek studied how a catalyst affects the rate of a chemical reaction. The data table below shows their results
Amount of Catalyst (mg)
Reaction Time (s)
10
60.3
20
47.7
30
31.8
40
22.6
Which statement correctly describes the pattern in the data (AKS 1a1)(DOK 1)
Question 25 options:
a. The catalyst did not affect the rate of the reaction.
b. The more catalyst added, the slower the rate of reaction
c. The more catalyst added, the faster the rate of the reaction
d. If 50 mg of catalyst were added, the reaction would take less than 22.6 seconds
Answer:
b. Cu cât se adaugă mai mult catalizator, cu atât viteza de reacție este mai RMEA
Explanation:
Which phrase best discribes how scientists use the data they collect
Answer: could you copy/paste or screenshot the phrase options? It'd really help me to answer your question.
Explanation:
HELPPPP I NEED THE ANSWER
Answer:
Explanation:
Temperature is the correct answer
Answer: Temperature and moisture?
Explanation:
Please answer both of them.
8. In rabbits, the allele for black coat color (B) is dominant over the allele for brown coat color (b).
Two black rabbits are mated. They produce some offspring that are black and some that are
brown. What are the genotypes of the parents?
9. using the information from question #8, what genotypes are possible among the offspring?
Answer:
8. Bb and Bb
9. BB, Bb, and bb
Explanation:
basically you're right lol. good luck!
Answer:
8. Bb and Bb
9. BB, Bb, and bb
Explanation:
If nessessary create a punnet square. That should help if you have another problem like this.
Michael and Jose are studying about plate tectonics. They learned that plates usually move a few centimeters every year. They learned that the movement of heated material caused the plates to move. In which layer does the heated material move?
Answer:
Mantle layer
Explanation:
The movement of heated materials on the mantle layer of the earth helps in the movement of the tectonic plates. The earth is made up of four layers and they are the crust, the mantle, the outer core, and the inner core. The tectonic plates are always in motion which is very slow but constant.
The convection currents emanating from the mantle layer of the earth aids the movement of the tectonic plates. Natural disasters like earthquakes can result from the intense pressure emanating from the movement of the plates.
Can u guys help me answering the following Test Guide and using complete sentences
TEST: CELLS AND CELL PROCESSES
REVIEW WORKSHEET
WHAT DO I NEED TO KNOW?
ROBERT HOOK’S CONTRIBUTION TO CELL BIOLOGY__________________
3 PARTS OF THE CELL THEORY __________________________________________________________________________________________________________________________
MAIN DIFFERENCE BETWEEN EUKARYOTIC AND PROKARYOTIC CELLS __________________________________________________________________________________________________________________________
WHAT IS TRUE ABOUT ALL BACTERIA?___________________________________________________
DIFFERENCE BETWEEN LYTIC AND LYSOGENIC CYCLE OF VIRUS REPRODUCTION _______________________________________________________________________________________________________________________________________________________________________________________
NAMING BACTERIA STREPTO VS. STAPHLYO
MOST IMPORTANT JOB OF ALL BACTERIA ________________________
BE FAMILIAR WITH PHOSPHOLIPID ORIENTATION IN FLUID MOSAIC MODEL OF CELL MEMBRANE……WHAT IS PHOSPHATE HEAD ATTRACTED TO? THE LIPID TAIL? __________________________________________________________________________________________________________________________
FUNCTION OF CHOLESTEROL IN THE MEMBRANE ___________________________________________________________
DIFFERENCE BETWEEN CHROMATIN AND CHROMOSOME __________________________________________________________________________________________________________________________
ORGANELLES IN PLANT CELLS NOT SEEN IN ANIMAL CELLS _____________________________________________________________
YOU MUST BE FAMILIAR WITH ALL ORGANELLES ASSOCIATED WITH PLANT AND ANIMAL CELLS AND HAVE AN IDEA ABOUT THEIR FUNCTION
THE RULE FOR OSMOSIS IN TERMS OF SOLVENT AND SOLUTE __________________________________________________________________________________________________________________________
MOVING DOWN A CONCENTRATION GRADIENT MEANS WHAT ____________________________________________________________
WHAT FACILIATED DIFFUSION IS __________________________________________________________________________________________________________________________
CHARACTERISTICS OF PASSIVE AND ACTIVE TRANSPORT AND THE SODIUM POTASSIUM PUMP AS AN EXAMPLE OF ACTIVE TRANSPORT______________________________________________________________________________________________________________________________________________________________________________
HYPERTONIC VS. HYPOTONIC VS. ISOTONIC SOLUTIONS __________________________________________________________________________________________________________________________
CYTOLYSIS, CRENATION, PLASMOLYSIS_______________________________________________________________________________________________________________
ENDOCYTOSIS, PHAGOCYTOSIS, PINOCYTOSIS, EXOCYTOSIS _______________________________________________________________________________________________________________________________________________________________________________________
EMBRYONIC VS. ADULT SOMATIC STEM CELL GENERAL CHARACTERISTICS______________________________________________________________________________________________________________________________________________________________________________________________________________________________________
SOMATIC CELLS VS GAMETES _____________________________________
ANOTHER NAME FOR A FERTILIZED EGG_______________________
CHARACTERISTICS OF GERM LAYERS: ECTODERM, MESODERM, AND EDODERM _______________________________________________________________________________________________________________________________________________________________________________________
PROBLEM SOLVING REGARDING TONICITY SOLUTIONS: CALCULATING PERCENTATGES OF SOLVENT AND SOLUTE BOTH INSIDE AND OUTSIDE THE CELL; DETERMINING THE MOVEMENT OF WATER WITH ARROWS, LABELING THE SOLUTION
Answer:
Robert Hooke is known for the first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork)
Plants are made of cells, Animals are made of cells, Cells produce other cells.
Eukaryotic have a nucleus meanwhile prokaryotic lacks of it.
Bacteria are prokaryotes
Cholesterol stabilize the cell membrane, less fluid at higher temp and less solid at lower temp.
Chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material
Plant cell have cell wall, chloroplasts, plastids, and a central vacuole
Refers to going from regions of high concentration of some entity to regions of low concentration, and such movement generally occurs spontaneously,
Facilitated diffusion is the diffusion of molecules assisted by transport proteins
Passive transport no needs energy, move molecules trough phospholipid bilayer
Active transport needs energy, move molecules trough membranes
Endocytosis engulf substances and form vesicles (into the cell) (active transport)
Phagocytosis cell eats solid particles or big substances
Pinocytosis is the cell drinking, liquid substances
Exocytosis vesicles move through the plasma membrane, release the contents (outside the cell) (active transport)
Animal and plant cell organelles: nucleus, nuclear membrane, nucleoplasm, nucleolus, cillia, flagella, Rough Endoplasmic Reticulum, Smooth Endoplasmic Reticulum, Golgi apparatus, plasma membrane, vesicles, lysosomes, peroxisomes, centrioles, mitochondria, cytoplasm, cytosol, cytoskeleton, ribosomes, vacuoles, cell wall, chloroplasts.
Another name for a fertilized egg is zygote
Hope it helps :)
Why did Mendel study pea plants?
They reproduce asexually and have one trait that is easy to observe.
They reproduce asexually and have many traits that are easy to observe.
They reproduce sexually and have one trait that is easy to observe.
They reproduce sexually and have many traits that are easy to observe.
Answer:
For Gregor Mendel, pea plants were fundamental in allowing him to understand the means by which traits are inherited between parent and offspring. He chose pea plants because they were easy to grow, could be bred rapidly, and had several observable characteristics, like petal color and pea color.
Explanation:
Gregor Mendel chose the pea plants for his experiments because the garden pea is an ideal subject in the study of genetics for the following reasons: The presence of observable traits with contrasting forms. It produces many offspring in one cross. Short life cycle.
Why did Mendel choose pea plants to study?Solution: Pea plants were chosen for Mendel's experiments because they are easy to grow, have a short life period, and produce larger flowers. Pea plants are also self-pollinated.
What was the purpose of the pea plant study?Gregor Mendel describes his experiments with peas showing that heredity is transmitted in discrete units. From the earliest time, people noticed the resemblance between parents and offspring, among animals and plants as well as in human families. Gregor Johann Mendel turned the study of heredity into a science.
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that Watson and crick are the only sciences who have contributed to our knowledge of DNA and its role true or false
Answer:true
Explanation:
Im probably wrong i just need points
Which parts of DNA provide the code for proteins?
Answer:
The genetic code is the sequence of nucleotide bases in nucleic acids (DNA and RNA) that code for amino acid chains in proteins. DNA consists of the four nucleotide bases: adenine (A), guanine (G), cytosine (C) and thymine (T). RNA contains the nucleotides adenine, guanine, cytosine and uracil (U).
A gene is a section of a DNA molecule that contains the information to code for one specific protein.
The DNA code contains instructions needed to make the proteins and molecules essential for growth, development and health.What is gene?A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. Many genes do not code for proteins.What is DNA?
DNA is the genetic material, which is involved in carrying the hereditary information, replication process, mutations, and also in the equal distribution of DNA during the cell division.
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please help im stuck on this its science
Answer:
Conduction is the word you need
Explanation:
condaction or convection
A scientist observed that during the course of a chemical reaction the number of ATP molecules were converted into ADP. What did the scientist most likely learn from the observation? a The reaction caused an output of energy. b The reaction produced water. c The reaction consumed water. d The reaction required an input of energy.
Answer:
a The reaction caused an output of energy
Explanation:
Adenosine triphosphate, commonly known as ADP, is an high-energy storage molecule in living cells. It stores and transfers needed energy for metabolic activities. ATP stores its energy in the bonds that hold the phosphate group in its structure. However, the energy is released for use during metabolic processes when the phosphate bond is broken, leading to the release of ADP molecule.
In this case, a scientist observed that during the course of a chemical reaction the number of ATP molecules were converted into ADP. This means that the reaction has caused ATP molecules to release its stored energy i.e. an energy output.
True or false identify if it is false: wetlands flood peoples homes and also filled with freshwater thats good for the aquatic life in the water.
If you are analyzing the nutrients in a food, how would you decide if the food is healthy or not?
Answer:
If a food has a daily value of 5% or less of a nutrient, it is considered to be low in that nutrient. A food is a good source of a nutrient if the percent daily value is between 10% and 19%. If the food has 20% or more of the daily value, it is considered an excellent source of that nutrient.
Explanation:
Which describes gas exchange in the respiratory system?
A. Gas exchange happens through diffusion.
B. Gas exchange removes oxygen from the body.
C. Gas exchange occurs between the body’s cells and bronchi.
D. Gas exchange protects the body against foreign invaders.
Answer:
A.
Explanation:
A. Gas exchange happens through diffusion.
Answer:
A
Explanation:
How many amino acids does this protein segment contain?
Answer: the given protein segment contains 20 amino acids
The given segment of the polypeptide chain is made up of four different types of amino acids, and each amino acid is connected to each other by the peptide bond, and the chain elongates from the N terminal to the C terminal.
What is the significance of amino acids?There are 20 different standard amino acids that take part in polypeptide chain synthesis, and those are categorized into some particular types such as hydrophobic amino acids, hydrophilic amino acids, charged and uncharged amino acids, etc., and different compositions of the amino acids make different types of proteins. The polypeptide chain is generally synthesized from the N terminal to the C terminal, and here in the given diagram, there are four amino acids, and each amino acid has an amino group, a carboxylic group, a hydrogen group, and one side chain bonded to a single central carbon atom.
Hence, the given segment of the polypeptide chain is made up of four different types of amino acids.
Learn more about the amino acid here.
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which statement best describes how eating regular meals help your body maintain homeostasis
Answer:
regular meals provide your body with a constant supply of energy
Explanation:
Answer:
constant supply of energy
Explanation:
If you say that a ground squirrel has greater evolutionary fitness than another ground squirrel in the same population, you mean that the animal
Answer:
Has more offspring that have the ability to survive and reproduce themselves.
Explanation:
Evolution fitness can be defined as a characteristic or quality possessed by living organisms and determines their adaptability, as well as level of success in terms of reproduction i.e giving birth to offsprings.
Hence, if you say that a ground squirrel has greater evolutionary fitness than another ground squirrel in the same population, you mean that the animal has more offspring that have the ability to survive and reproduce themselves.
Which statement describes the relationship between minerals and rocks?
Minerals and rocks are the same.
Aggregates of minerals form rocks.
Minerals determine the texture of a rock.
Most rocks are made of a single mineral type.
I will give brainliest
Minerals determine the texture of a rock.
What is direct characterization?
A.
when a character is described in detail by the author
B.
when a character is understood through dialogue
C.
when a character is revealed through another character’s thoughts and feelings
D.
when a character is revealed through his or her actions and appearance
Answer:
A
Explanation:
Unfortunately brainly won't let me put the question for some reason, so I'll provide the question in the screenshot, please read...
I get you :-)
If supposedly there were air spaces in the palisade cell,it would have fewer chloroplasts that carry out photosynthesis.Hence photosynthesis won't be as effective.
Hope this made sense
Staphylococcus aureus, or staph, is a bacteria that is commonly found in the nose and on the skin of humans. While it is typically not harmful to humans, it is sometimes able to enter the body through an injury or broken skin, and get into the bloodstream. When this happens, it can cause a serious infection called sepsis. Sepsis can cause an individual to go into shock and bodily organs to stop functioning. Symptoms of sepsis include inflammation, fever or hypothermia, increased heart rate, and rapid breathing.
A microscopic image of staphylococcus aureus is shown.
Which immune system component initially results in the inflammation and responds quickly when Staphylococcus aureus enters the bloodstream?
complement system
phagocytes
Langerhans cells
B lymphocytes
Mark this and return
Answer:
lymphocytes is the answer
When members of a community work to preserve their unique cultural traits, they are trying to protect their __________. A. universal culture B. cultural region C. popular culture D. local culture Please select the best answer from the choices provided A B C D Mark this and return
Answer:
D. Local culture
Explanation:
hope this helps :)
A strand of DNA has the sequence GATTACA. What will be the sequence of the complementary strand of DNA?
Answer:
Pretty sure it is: CTAATGT
I would appreciate some verification but im 75% sure
Explanation:
Herman's company has adopted a paperless policy. Employees no longer print letters or documents and instead do everything on the computer. Office paper use has dropped by 40% in the last six months. If everyone adopted the same policies, what impact would that have on the environment?
Answer:
There would be a decrease in deforestation, because fewer trees would be cut down for paper.
Explanation:
If everyone reduce the use of papers it will lead to reduce in deforestation.
What is deforestation?Deforestation refers to the loss of forest area worldwide to other uses such as agricultural land, urbanization and mining activities. Deforestation, greatly accelerated by human activities since the 1960s, has adversely affected natural ecosystems, biodiversity and climate.
Several factors, both human and natural, cause deforestation. Natural factors include natural forest fires and diseases caused by parasites that can lead to deforestation. Nevertheless, human activities are one of the main causes of global deforestation.
Therefore, If everyone reduce the use of papers it will lead to reduce in deforestation.
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If the mrna is damaged, it directly interferes with the ability of a animal cell to do which of the following?
Answer:
Proteins.
Explanation:
If the mRNA is damaged, it directly interferes with the ability of producing proteins in animal cell because mRNA is responsible for carrying the protein blueprint from a cell's DNA to its ribosomes which are considered as the machines of the cell that produces proteins for the cell. These messenger RNA has the information about what type of proteins are required to produced for the cell. So if mRNA is damaged, the ribosomes are unable to produce proteins for the cell.
help me on 28 pleaseeeee