Answer:
Linckia laevigata (sometimes called the "blue Linckia" or blue star) is a species of sea star in the shallow waters of tropical Indo-Pacific.
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now you’ll examine an operon that undergoes negative and positive control. the ara operon in e. coli codes for enzymes that metabolize the sugar arabinose, which e. coli can use for energy. as you can see in the diagram, the regulatory protein arac can act as both an activator and a repressor of the ara operon.
The lac operon is known to be able to undergoes negative and positive control.
The diagram based on the 4 table arrangement is filled up below (Right to left);
In the presence of arabinose: initiator, activator, yes, yes.In the absence of arabinose: initiator and operator, repressor, no, no.
If a mutation prevents arabinose from biding to AraC: initiator and operator, repressor, no, no.
If arabinose is present but a mutation and AraD enzyme renders it non-functional: initiator, activator, yes, no.
The metabolism of the sugar arabinose is known to be influenced by an operon that is said to undergo both positive control and negative control.
Transcription of the ara operon is lead by the regulatory protein AraC, which then bound to the DNA.
When arabinose is present, it binds to AraC, and both parts of the AraC dimer are then also bound to the initiator, making transcription to move foreword.
When arabinose is absent, one part of the AraC dimer is often bounded to the initiator, while the other part is bounded to the operator, thereby hindering transcription.
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Now you'll examine an operon that undergoes negative and positive control. The ara operon in E. coli codes for enzymes that metabolize the sugar arabinose, which E. coli can use for energy. As you can see in the diagram, the regulatory protein AraC can act as both an activator and a repressor of the ara operon.
Use the diagram above to fill in the table.
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Definition of Genetic Engineering
Answer:
Genetic engineering is the process of altering or modifying the DNA in an organism’s genome.
Answer:
Genetic engineering, also called genetic modification or genetic manipulation, is the direct manipulation of an organism's genes using biotechnology
What is photosynthesis?
Answer:
photosynthesis is the process in which plants convert light energy, carbon dioxide, and water to create glucose which it uses to feed itself and oxygen which is expelled into our atmosphere helping us breathe
Explanation:
sensory information from all parts of the body is routed to
Answer:
the Somatosensory Cortex.
Explanation:
im not sure that is just the anwser.
which of these neurotransmitters does not bind to a plasma membrane receptor?
which structure has the function of transferring the egg from the ovary to the uterus?
What causes a substance’s identity to change during a chemical change?
what was life like for the native americans after they were relocated west to indian territory
hmmm what is it mhmhmhmm
True or False: Increases in the width of long bones is a result of bone modeling.
Answer:
TRUE is correct
Explanation: protecting the post.
Answer:
Explanation:
True
Think about how you obtain the energy you need to do everyday activities like doing chores, going to school, or playing sports. Write about it in the box below.
Answer:
I get energy by sleeping at night and eating at least 3 meals a day everyday.
Explanation:
how are lymphatic capillaries different from blood capillaries?
Answer:
Lymphatic Capillaries are slightly larger in diameter than blood capillaries, and have closed ends (unlike the loop structure of blood capillaries). Their unique structure permits interstitial fluid to flow into them but not out.
Explanation:
a
A balance is best used to measure a sample's
volume
b. length
C. mass
d. size
Answer:
size
Explanation:
meiosis produces four genetically different haploid cells. Mitosis produces..
a) 4 genetically identical haploid cells
b) 2 genetically different diploid cells
c) 2 genetically identical diploid cells
d) 4 genetically different haploid cells
Answer:
c) 2 genetically identical diploid cells
By keeping food cold, the growth of microorganisms is:
Answer:
they are called growth because you are training them
a difference between bacterial and eukaryotic transcription
Answer:
According to Wikipedia, In bacteria, transcription and translation can occur simultaneously in the cytoplasm of the cell, whereas in eukaryotes transcription occurs in the nucleus and translation occurs in the cytoplasm.
GIVE BRAINLIEST PLZ! :)
The difference between bacterial and eukaryotic transcription is that in bacteria, transcription and translation can occur simultaneously in the cytoplasm of the cell, whereas in eukaryotes transcription occurs in the nucleus and translation occurs in the cytoplasm.
What is the difference between eukaryotes and prokaryotes?The main difference between eukaryotes and prokaryotes is that the eukaryotes are well developed and advanced and have different cell organelles and they have different functions in the cell and the prokaryotes are not well developed and they are found in the unicellular organisms.
The unicellular organisms are made of one cell and carry out the processes of life as a single cell and the multicellular organisms are made up of two or more cells that have specific functions to contribute to the life processes.
Therefore, The difference between bacterial and eukaryotic transcription is that in bacteria, transcription and translation can occur simultaneously in the cytoplasm of the cell, whereas in eukaryotes transcription occurs in the nucleus and translation occurs in the cytoplasm.
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by moving substances into and out of cells,_____, the process of keeping stable conditions inside a cell, is maintained
Answer:
love you quieres ser mi novio
Answer:
Homeostasis
Explanation:
This process maintains sugar, salt nutrients and other substances within a certain range to maintain safety
Oxygen sag curves can occur in streams when ____. Group of answer choices bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool or cold
Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool .
What is biodegradable waste?The waste which has been recycled and converted into nutrients for plants as well as crops and for other use are known as biodegradable waste. It has been also known as any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things.
Composting has been possible with the wastes which can decay by itself, like fruit and vegetable peels, leaves, flowers etc. Non biodegradable wastes will not decay by itself.
Therefore, Oxygen sag curves can occur in streams when bacteria break down biodegradable wastes salt and fresh water mix water flows quickly water levels are high water is cool.
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What is a chemical reaction from your teeth
Explanation: Calcium phosphate and hydrogen ions undergo a reversible reaction with calcium ions, phosphoric acid and water. The products of the reaction are calcium ions, phosphoric acid and water. All of these exist in chemical equilibrium with the crystalline calcium phosphate.
Answer:
calcium ions, phosphoric acid and water
Explanation:
Calcium phosphate and hydrogen ions undergo a reversible reaction with calcium ions, phosphoric acid and water
A(n) _____ is a type of cancer-causing gene that promotes cancer by activating cell division at an inappropriate time or place.
explain the effects of removing one organism from a terrestrial food web
Answer: If one species in the food web ceases to exist, one or more members in the rest of the chain could cease to exist too. A plant or animal doesn't even have to become extinct to affect one of its predators.
Explanation:
Can somebody please help me on this I just got this brainly app and I really want to give more points if you help me But this is as much as I have (BTW THIS IS SCIENCE)
Answer:
the answer would be (c)
Explanation:
hope this helps
Which of the following are forms of cell regulation?
Answer:
the answer is should be C
If you breathed in air that had a lower oxygen concentration than your blood, describe what would happen in your alveoli.
Answer:
internal respiration
Explanation:
internal respiration is described by what your asking so that shows the in your alveoli would react with internal respiration and if it says im wrong then i dont what.
PLEASE HELP QUICKLY!!!!!!!!!!!!!!
Which of the following best describes how you know the matter that makes up the sequoia tree comes from your answer in the previous question.
A. All the energy comes from the sun, so it would make sense that any matter we get would also come ultimately from the sun. Without the sun, no photosynthesis would happen
B. Water and carbon dioxide supply us with the matter and they are the inputs for photosynthesis, and everything starts with photosynthesis
C. Our bodies are made of over 90% water, so we essentially are water which is an input for photosynthesis
D. We are made of carbon-based molecules and that carbon needs to come from somewhere, so the carbon comes from the glucose we eat which came from the carbon dioxide.
E. Glucose is eaten by us which is then used to build oxygen and carbon dioxide molecules that will get released back into the air. We are able to make air which is an example of matter/mass in our biosphere
I know it's either D or E
Answer:
D
Explanation:
My intuition told me so
True/False. All mutations are bad.
False.
There are several good mutations that have ensured the survival of species. Typically helpful mutations help the creature adapt to its environment or protect itself from predators.
I hope this helps! :)
What is the function of glycoproteins?
O to detect bacteria and other foreign bodies outside of the cell
O to actively carry specific ions or molecules into the cell
O to serve as identification for the cell
O to allow specific ions or molecules to pass freely
Answer:
Glycoproteins are molecules that comprise protein and carbohydrate chains that are involved in many physiological functions including immunity. Many viruses have glycoproteins that help them enter bodily cells, but can also serve to be important therapeutic or preventative targets.
Explanation:
this is the correct answer happy
The oldest living plants are __________. Your text describes one such plant,that is more than __________ years old.
Answer:
the oldest living plant is seagrass colony
Explaination:
The plant is over 100000 years old
What change in the mass number of a nucleus occurs when the nucleus emits an alpha particle?
Answer:
Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.
Explanation:
Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.
What are the three cell layers of retina, and how does the light travel to get to the receptor layer
define osmoregulation
Answer: OK!
Explanation: Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated.
Hope i helped! :D