A scientist notices that when she adds a small, watersoluble molecule to a dish of cells, the cells turn off transcription of a gene. She hypothesizes that the ligand she added binds to a(n) ______ receptor.

Answers

Answer 1

She hypothesizes that the ligand she added binds to an enzyme-linked receptor. Enzymes catalyze reactions.

What are enzymes?

Enzymes are specific proteins that catalyze chemical reactions by lowering the activation energy of the reaction.

Enzymes can bind to specific substrates to phosphorylate them and thus activate a signaling pathway.

Enzymes are fundamental proteins that act during different metabolic processes in an organism.

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Related Questions

How is a phylogenetic tree similar to a dichotomous key.

Answers

Answer: Phylogenetic trees are similar to the dichotomous keys because they used for identification and are artificial.

Answer:

Both focus on illustrating taxonomic relationships between organisms.

Explanation:

this is the correct answer

Which agricultural practices result in methane emission?

Answers

Agricultural sources include manure pits and cow burping from “enteric fermentation,” which results from the digestive process of cattle. Flooded rice paddies also emit methane because water prevents oxygen from reaching the soil, triggering a build-up of methane-emitting bacteria.

Agricultural sources include manure pits and cow burping from “enteric fermentation,” which results from the digestive process of cattle.

What do you mean by enteric fermentation?

Enteric fermentation is a digestive process by which carbohydrates are broken down by microorganisms into simple molecules for absorption into the bloodstream of an animal.

Enteric fermentation is a natural part of the digestive process in ruminant animals such as cattle, sheep, goats, and buffalo. Microbes in the digestive tract, or rumen, decompose and ferment food, producing methane as a by-product.

Enteric fermentation occurs when anaerobic microbes, called methanogens, decompose and ferment food present in the animal's digestive tract producing compounds that the animal host then absorbs.

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In humans, having dimples in the cheeks is a dominant trait. If a child has dimples but only one of her parents does, what are the genotypes of her parents?.

Answers

One parent must be dd. but the other parent could be D_ (Dd or DD)

Question, what are Earth's major systems?

Answers

Answer:

geosphere (solid and molten rock, soil, and sediments), the hydrosphere (water and ice), the atmosphere (air), and the biosphere (living things, including humans).

Explanation:

In order to study genetic mutations, scientists must study genetic material. Which statement describes the genetic material scientists are most likely studying?.

Answers

Possibly bones and genetic makeups

Question 1 of 10
Nucleic acids and carbohydrates are both types of what?
A. Proteins
B. Macromolecules
C. Atoms
D. Elements
SUBMIT

Answers

Answer:

the answer is B: macromolecules

:)

Explanation:

A human bone marrow cell in the prophase stage of mitosis contains 46 chromosomes. Therefore, there are a total of __________ sister chromatids in this cell.
a. 23.
b. 46.
c. 23 or 46, depending on whether you look at the beginning or end of prophase.
d. 46 or 92, depending on the portion of prophase examined.
e. 92.

Answers

Answer:

The answer is 92 which is E

Explanation:

Because I said so

What is the end result of the eukaryotic cell cycle?
no parent cells and two daughter cells
one parent cell and two daughter cells
two parent cells and one daughter cell
one parent cell and one daughter cell

Answers

No parent cells and two daughter cells.

Answer:

The end result of the eukaryotic cell cycle is an increase in cell number.

Answer:

A. no parent cells and two daughter cells

Explanation:

Which carbohydrate is found in the cell walls of plants.

Answers

answer is cellulose

What structural feature makes the 20 common amino acids different from one another?.

Answers

The R-group (side chain) is what makes each amino acid unique. Each of the 20 amino acids has a different side chain structure.

What do you think the hardest part of measuring the growth of a forest would be? Explain your answer.

Answers

Answer:

You can measure the growth of individual trees over time by measuring their diameter. ... Trees tend to grow irregularly at the base, so to determine a more accurate measure of diameter, foresters will measure the diameter of the tree at 4.5 feet above the ground

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Using a Biltmore stick to gauge height

Tracking Changes to Your Trees and Woods: Measuring growth

September 4, 2014RecreationKris Tiles

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In previous posts, we recommended that landowners get out into their woods to keep an eye on any changes that might be taking place, whether that be changes to the health of your trees or boundary problems. We also suggested you keep track of physical changes to your trees by watching them grow and change over time. First we gave you some tools to identify the trees in your woods. This month’s post will introduce ways you can measure the growth of individual trees.

You can measure the growth of individual trees over time by measuring their diameter. Many of us learned to count the rings of a tree to determine how old they are. The other secret in the rings of our trees is how wide they are. Generally, healthy, not crowded trees will put on more growth in diameter over time; thus, the rings will be wider when they are healthy. If you are astute, you may be asking how in the heck you measure the diameter of solid wood. That is where a handy tool comes into play, called the diameter tape. With this tool, you are technically using the circumference of the tree, and the number on the tape has markings that indicate the diameter (circumference divided by Pi (3.14)). You can purchase a diameter tape (D-tape) from forestry suppliers, or you can make your own using a simple length of rope or ribbon using the method shown in this publication . Trees tend to grow irregularly at the base, so to determine a more accurate measure of diameter, foresters will measure the diameter of the tree at 4.5 feet above the ground. When you record the diameter of trees, you can follow the growth of those trees over time, and you can calculate other important measures of your woods. As a reminder, healthy trees will grow faster (and fatter) in diameter each year than trees that are crowded and unhealthy.

I think that the hardest part of measuring the growth of a forest is, keeping track of the measurements of ever plant that would be in the forest, and if you messed up a measurement while planting your forest everything will go out of order, it will also take lots of years, because the forest is mainly trees, and it approximately takes about 30 years for a tree to be fully grown, so that is what I think the hardest part of measuring the growth of forest! : you can cut some words out cause they might not be necessary hope it helps tho and sorry if its not fully correct!

Explain the flow of information from DNA to RNA to proteins. What occurs at each stage of this pathway?.

Answers

Answer:

Adenine, thymine, cytosine and guanine are the 4 dna protiens, when they are being translated to RNA thymine is replaced with uracil, the now converted strands of rna clump together as animno acids and code for proteins

Explanation:

Organisms that obtain and ingest organic molecules for their nutrition are classified as.

Answers

Answer:

Also refered to as consumers, heterotrophs are organisms that obtain their energy (nutrition) from organic compounds/materials. In other words, they are organisms that are unable to produce their own food (unlike autotrophs) and therefore have to consume/ingest organic compounds as a source of energy.

Fungi often live in close association with other organisms in a nondetrimental fashion known as ______.

Answers

Answer:

ecosystem

Explanation:

because jt also needs other organisms for survival

suzanne has type a- blood. which blood type could she receive

Answers

Answer:

Only O- and A-

As of 2015, how many accredited anesthesiology assistant graduate training programs are there in the us?.

Answers

As of 2015, there are twelve (12) accredited anesthesiology assistant graduate training programs in the USA. These programs form excellent healthcare professionals.

Anesthesiology and healthcare

Anesthesiology is a branch of medicine associated with the healthcare of the patients/clients before and after a particular surgery.

Anesthesiology is fundamental in healthcare in order to achieve the wellbeing state of patients.

Anesthesiology not only includes anesthesia, but also intensive care, critical emergency situations, and pain medicine.

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When the pressure in the ventricles becomes lower than the pressure in the atria, __________.

Answers

Answer:hey

Explanation:

When the pressure in the ventricles becomes lower than the pressure in the atria... the atrioventricular valves open

When the government imposes a binding price floor, it causes.

Answers

The imposition of price by the government causes a surplus of goods to accumulate in the supply chain.

What are goods and services?

Goods and services are those things that we exchange our money for. A typical example is what happens at the grocery store. You exchange your money for grains.

When the government imposes a binding price floor, it causes a surplus of goods to accumulate in the supply chain.

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A fire that happens in nurture areas

Answers

Answer:

i don't know if u meant nature but the answer is wildfire

Label the diagram below. 1 2 3 4 5 6 7 ​

Answers

Answer:

Need more information.

Explanation:

Put the rest of the question in the comments and I am happy to help!

Strawberry jelly is a very strong solution of sugar. By contrast the cytoplasm in bacteria is a much weaker solution. The cell wall of bacteria is made up of a PARTIALLY permeable membrane. Would water flow from the microbe to the jam, or from the jam to the microbe by osmosis? Explain​

Answers

Since the concentration of the jelly is higher than the concentration of the bacterial cytoplasm, water would flow from the microbe to the jam by osmosis.

What is Osmosis?

Osmosis is the movement of water molecules from a region of low solute concentration to a region of high solute concentration through a semi-permeable membrane.

The strawberry jelly is a stronger solution than the bacterial cytoplasm.

Therefore,  water would flow from the microbe to the jam by osmosis.

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2. Explain why photosynthesis is needed for respiration and vice versa. Provide a
specific example to support your answer.

Answers

Answer:

Explanation:

Photosynthesis uses carbon dioxide to create oxygen in the atmosphere. Oxygen is what we breathe. We do a process called cellular respiration. This means we breathe in oxygen and breathe out carbon dioxide. Plants use this carbon dioxide to do photosynthesis. It is a never-ending cycle.

For example, a bunny breathes out carbon dioxide. The plant takes carbon dioxide in and gives out oxygen. The bunny breathes in the oxygen and then again breathes out the carbon dioxide.

The aromatic oils of chaparral shrubs _______. A. Promote wildfires b. Make many plants flavorful cooking herbs c. Help shrubs eliminate their competitors d. All of the above Please select the best answer from the choices provided A B C D.

Answers

Answer:

B. make many plants flavorful coking herb. (I hope it's right..)

Explanation:

teacher said so..

Answer:

D. All of the Above

Explanation:

Got it right on Edge 2020. Hope this helps :)

In 1978, scientists studied how the fitness of marine sticklebacks would be affected if they were introduced into a freshwater environment. They collected 90 male and 90 female sticklebacks from a marine population and 10 male and 10 female sticklebacks from a freshwater population. The 200 sticklebacks were introduced into a freshwater environment that had no stickleback fish previously.

Recently a scientist decided to repeat this study, but relocated a population of sticklebacks from a freshwater environment into a marine environment. Which of the following best predicts how the frequency of the allele would change over time if a population of sticklebacks from a freshwater environment was placed into a marine environment?

Answers

The frequency of alleles in the population started low and continued to increase over time.

What is frequency of alleles?

The frequency of alleles refers to the ratio of the number of times an allele occurs to the copies of all the alleles at that particular genetic locus  in the given population.

We can see that the sticklebacks had a greater number of those introduced from marine to fresh water hence of the 200 sticklebacks, the frequency of alleles in the population started low and continued to increase over time.

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Did the results of the cross match your prediction? If not, why do you think that was the case?

Answers

They did not match original prediction, they did not match because the firstborn offspring do not typically match their parents.

Which of the following is an example of a nonspecific immune response? I. White blood cells that invade the area of a cut in the skin II. An injury triggers mast cells to release histamine, causing inflammation III. Killer T-cells destroy pathogens by recognizing proteins on cell surfaces.

Answers

Nonspecific is the innate immune response that is present since birth. White blood cells and mast cells are examples of non-specific immunity.

What is a nonspecific immune response?

The non-specific immune response is the immunity present in the child from his/her birth and is a generalized response that employs white blood cells and mast cells for conferring the pathogens.

It is innate immunity that protects from the invasion of pathogens and provides the first line of defence by forming barriers.

It includes the invasion of the white blood cells in the area of any cut or injury or the release of the histamine from the mast cells in an injured area for the inflammation pathway.

Therefore, the statement I about white cells and II about mast cells are examples of the non-specific immune response.

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Energy from the sun causes water to evaporate from the land and from bodies of water. As this water vapor moves high into the air, the surrounding air cools it, causing it to condense and form ________________. *
a.runoff
b.evaporation
c.clouds
d.groundwater

Answers

Answer:

c. Clouds

Explanation:

It is the process called as condensation. Condensation is when the water vapor moves up to from clouds.

For each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, then use the codon chart to determine the amino acid sequence:

DNA → T A C C A T G G A A T T A C T

RNA →

Amino Acids →

DNA → T T C A A T G G T C T A G G G

RNA →

Amino Acids →

DNA → A C A T T T C A G A C C G T C

RNA →

Amino Acids →

Answers

I hope this helps let me know if you need more help

how climate change could present an advantage or a disadvantage for the invasive species.

Answers

Answer:

it could kill off the invasive species but then you would have to worry about your native species too or it can all work in its favor meaning it doesn't effect the invasive species at all and only kills the native species

Explanation:

Which enzyme is involved in the “part A” image? What is it doing?

Answers

Answer:

Enzyme activity is measured in units which indicate the rate of reaction catalysed by that enzyme expressed as micromoles of substrate transformed (or product formed) per minute.

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