in all organisms, certain genes are expressed at any given time while other genes are not. both prokaryotes and eukaryotes regulate gene expression at the transcription stage. however, the greater complexity of eukaryotic cells makes it possible for gene expression to be regulated at many other stages as well. the diagram below shows different stages at which gene expression may be regulated in eukaryotes.

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Answer 1

Answer:

The process of turning genes on and off is known as gene regulation. Gene regulation is an important part of normal development. Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for examp


Related Questions

All cells come from other cells. New cells are created by a process called cell division. To start cell division, a cell grows bigger and makes copies of the parts inside it. Then, the cell and its parts separate into two new cells. Each new cell contains the same types of cell parts as the original cell. Later, each of these cells may divide again to form more cells. When a multicellular organism's cells divide, the organism can grow. Each resulting cell is part of that organism. When a unicellular organism divides, each resulting cell is a separate unicellular organism. The micrographs below show cells from two different organisms: Giardia, a unicellular protist, and banana, a multicellular plant. Giardia cells in a banana Which of the following statements are true? Select all that apply.?

a. A rose bush cell can divide to form two rose bushes
b. If the bacterium divides, it will become a multicellular organism
c. When a rose bush cell divides, it copies its parts then divides into two cells
d. The bacterium was formed when another bacterium divided

Answers

Answer:

c. When a rose bush cell divides, it copies its parts then divides into two cells and

d. The bacterium was formed when another bacterium divided

Explanation:

C is correct because the cells inside are part of a larger being (the rose bush), when they divide they are simply creating more cells (hence making the rose bush grow).

D is correct because bacterium are unicellular organisms, meaning they are themselves single cells that are organisms, unlike the rose bush consisting of  many cells.

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Which classification of teeth is when they are chisel shaped and exert a shearing action used in biting

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Answer:

Incisors

Explanation:

FILL IN THE BLANKS WILL MARK BRAINLIST
Animals make the ______________ that plants need, and plants make the ______________ that animals need.

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Answer:

animals make the CARBON DIOXIDE that plants need and plants make the OXYGEN that animals need

Explanation:

Hope this helps...

1. What do you notice about the angle of Earth?

2. How do you think this affects the seasons in different hemispheres (halves) of the world?

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Answer:

1. Today instead of rotating upright, The earth's axis is tilted 23.5 degrees. The angle varies a little over time, but the gravitational pull of the moon prevents it from shifting by more than a degree so. This tilt is what gives us seasons.

2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the earth's approximately 23.5° tilt, the season in the northern and southern hemispheres reversed, about six months apart from each other.

Which model below shows the positions of the Sun, Moon, and Earth that have the greatest effect on ocean tides?

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Answer:

Below!

Explanation:

Referring to the picture, we can conclude that the picture J will have the most effect on ocean tides.

Whichever model is similar to model J in the picture will be your answer.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

The model that shows the positions of the Sun, Moon, and Earth that have the greatest effect on ocean tides is the spring tide model.

What happen during the spring season?

During spring tides, the Sun, Moon, and Earth are in alignment, which causes the gravitational pull of the Sun and Moon to reinforce each other, leading to higher high tides and lower low tides.

Spring tides occur twice a month, during the new moon phase and the full moon phase.

In contrast, neap tides occur when the Sun, Moon, and Earth form a right angle, which causes the gravitational pull of the Sun and Moon to counteract each other.

This leads to lower high tides and higher low tides. Neap tides also occur twice a month, during the first and third quarter moon phases.

It's important to note that the positions of the Sun, Moon, and Earth aren't the only factors that affect ocean tides. Other factors, such as the shape of the coastline and the depth of the ocean floor, can also influence the height and timing of tides in a particular area.

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Observe the cell as it moves from stage to stage through cell division. What trends can you describe about the cell and its internal contents?

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Answer:

The cell is going through a state of mitosis.

Explanation:

Note the spindle fibers moving apart and splitting the chromosomes.

Examples of RNA viruses are Cvid19 or the virus that causes

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Answer:

I think bacteria but im not sure

Explanation:

--------

Draw a punnet square showing all the possible blood types for the offspring produced by type o mother and a type an father

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I have drawn two possibilities because I do not know if the father is heterozygous

In radish seeds, the roots grow in a downward direction, ensuring the plant is anchored in soil and has access to water and nutrients while the shoots grow in an upward direction ensuring the plant can absorb sunlight. How would the response by the roots and shoots be categorized? if someone can answer this id be happy <3

Answers

Answer:

I’m not smart for this but I could try

Explanation:

The way is that the roots absorb the water and store for the plant. This I know.

the shoots I don’t know much but I think the shoots help the roots with absorbing nutrients and stuff. I think they absorb the sunlight im sorry if this is not correct I’m not that smart..

agnatha are what because they live off the blood of other fish

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Answer:

They live off of the blood of another fish, they must have a host, so that makes these fish parasitic.

Explanation:

Explain step by step or in simple terms how does the body regulate water ​

Answers

Answer:

The kidneys can regulate water levels in the body; they conserve water if you are dehydrated, and they can make urine more dilute to expel excess water if necessary. Water is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs.

If brown hair is dominant and red hair is recessive, what are the possible genotypes for Sally is she has brown hair?

Answers

Answer:

the answer is BB, Bb

Explanation:

If brown hair is dominant you need to consider the fact that it cant be bb otherwise she would have red hair because lowercase genotypes mean recessive. this eliminates the first and third answer leaving you with the second and fourth answer and we can eliminate the second answer because it says "what are the possible genotypes" meaning we need to list all the possible answers which leaves you with the fourth option.

New combinations of DNA and genes can come from different sources in the genetic material that is passed from to offspring. Sources of genetic material can come from in meiosis I, errors during, in meiosis, and from environmental factors. When these new combinations are passed on to, this increases - potentially, the species. Remember, for a mutation to be passed on through sexual reproduction (meiosis), the change to the MUST be present in the.

Word Bank:
DNA DNA replication mutations offspring parents crossing-over gametes nondisjunction genetic diversity benefiting

Answers

New combinations of DNA and genes can come from different sources in the

genetic material that is passed from  parents to offspring.

Sources of genetic material can come from DNA replication in meiosis I,

errors during nondisjunction, in meiosis, and from environmental factors.

When these new combinations are passed on to offspring this increases

genetic diversity potentially, the species.

Remember, for a mutation to be passed on through sexual reproduction

(meiosis), the change to the DNA must  be present in the gamete

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The example of the Great Barrier Reef is used to illustrate,
A) the insignificance of coral reefs
B) the lack of diversity in the ecosystem
C) the consequences of increasing acidity
D) the problems that too much algae can create

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The example of the Great Barrier Reef is used to illustrate the consequences of increasing acidity. It is one of the wonders of the natural world.

The Great Barrier Reef represents one of the wonders of the natural world and the largest coral reef system worldwide.

This barrier extends from shallow estuarine regions to the deep marine environment, more than 14 latitude degrees.

Ocean acidification stops the development of the Great Barrier because Reef development is supposed to cease at pH 7.8.

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a population undergoing natural selection would see a faster and more dramatic change in allele frequency if the starting generation contained more of the allele being selected against.

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Answer: As the change in allele frequency causes the change in genome of the living organism inside few generations.

Explanation: The effect may leave the organism with the loss of some genes, while it can effect cause the loss of some of the beneficial genes inside the genome of the organism. Along with that the process can also improve the sequence of genes which are abnormal in nature.

What is the expression y is 8 less than the product of 3 and x

Answers

Answer:

8<3x

Explanation:

< is a symbol of less than and when you multiply 3 by x the answer is 3x so 8<3x

which animal is the closest living relative to a t-rex?

Answers

Question:-

which animal is the closest living relative to a t-rex?

Answer:-

Chickens

Explanation:-

A small mass of T-Rex DNA was discovered, which closely resembles the DNA of modern chickens, further supporting the fact that chickens evolved from dinosaurs.

what is the meaning of heart of the lungs ​

Answers

Oxygen is the heart of the lungs

Use examples to explain how the biosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences.​

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Answer:

The biosphere is influenced by other spheres and also influences other spheres.

The biosphere comes into contact with several other spheres such as the hydrosphere, the lithosphere, and the atmosphere.

Contact with the atmosphere is a two way street since the biosphere can alter the composition of the atmosphere. However, many members of the biosphere like mammals and birds depend on the mix of gases in the atmosphere to survive, and weather is an important agent of change.

The lithosphere is another sphere that can impact the biosphere through geologic activity both underground and on the surface. The impact of the biosphere on the lithosphere can be observed through the altering and transformation of terrains and through biochemical weathering of rocks.

Explanation:

Which letter in Figure 1 represents meiosis? Why?
Which letter in Figure 1 represents mitosis? Why?​

Answers

The letter D in Figure 1 represents meiosis, while letter A represents mitosis. Meiosis is a reductional cell division.

Mitosis is a type of cell division where a parent cell divides to produce two genetically identical daughter cells (in this case, diploid cells).

Meiosis is a reductional cell division where a parent cell divides twice to produce four daughter cells having half of the genetic material.

Meiosis occurs in germinal cells, while mitosis occurs in somatic (body) cells.

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Which of these changes is a possible negative consequence of farmers
allowing livestock to overgraze a pasture?
O A. Desertification
O B. Shortage of freshwater
O c. Deforestation
O D. Abundance of clean air

Answers

Given what we know, one of the possible negative consequences of farmers  allowing livestock to overgraze a pasture is desertification.

What is Desertification?In simple terms, desertification is when the land becomes so dry and void of life that it can be considered a desert. This can be caused by many factors, primarily the lack of vegetation.

How can overgrazing lead to Desertification?Overgrazing can lead to desertification due to the fact that the plants and vegetation are not given the opportunity to regrow.The presence of vegetation allows the soil to remain moist and fertile by moving minerals and water through it. Overgrazing causes a lack of vegetation which creates dry and infertile land, which leads to complete desertification.

Therefore, we can confirm that one of the possible negative consequences of farmers  allowing livestock to overgraze a pasture is desertification due to the damage caused to the soil in the absence of vegetation.

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the type of cell division that results in four haploid cells is known as

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Answer: Meiosis

Explanation:

I have a bad grade and need a better grade please help me please ❤️

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Dw, I have a bad grade as well <3

As well as absorbing fat-soluble vitamins, rabbits consume fat for energy. Most foods contain 2% to 5% DM fat, which rabbits can get from a vegetable diet.

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what is the difference in solubility of triglyceride and the products of their hydrolysis​

Answers

Answer: Triacylglycerols are the major constituents of oils and fats of both plant and animal origin.

Explanation:

Hope this helps.

The products of hydrolysis of triglycerides are fatty acids and glycerol. While fatty acids, like triglycerides, are insoluble in water, glycerol is soluble in water.

Why are triglycerides insoluble?

Triglycerides are esters of fatty acids and alcohol, mostly glycerol. The fatty acid chains are inked to the glycerol molecules with the help of covalent bonds.

This means that the triglyceride molecule is uncharged and will therefore remain insoluble in water but soluble in organic solvents.

Also, products of hydrolysis of triglycerides are fatter acids and glycerol. While fatty acids will remain insoluble in water, glycerol is soluble in water.

Glycerol is alcohol with 3 hydroxyl groups, this is why it is also called a polyol. They are able to hydrogen bonds with the nearby water molecules.

Therefore, triglycerides and fatty acids are insoluble and glycerol is soluble in water.

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the role of the cholesterol molecules (pink) in the phospholipid bilayer can be described by what statement

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They can slow down or speed up the flow of the bilayer depending on heat

What is the Spitzer telescope's primary function?

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Answer:

The Spitzer Space Telescope, formerly known as the Space Infrared Telescope Facility, is an infrared telescope that studies the early universe, young galaxies and forming stars, and is used to detect dust disks around stars, considered an important signpost of planetary formation. Jul 30, 2008

Explanation:

Hopes this helps. Mark as brainlest plz!

A heterozygous gray (two genes are involved) cat is crossed with a cat that is heterozygous for these two genes. What is the probability of a black kitten? What is a possible genotype of a black kitten? thanks

Answers

Answer:50% chance, and the genotype would be heterozygous

Explanation:

G=gray r=black

      G     r

G   GG   Gr

r     Gr    rr

a.
F. The spindle is
the DNA found in the nucleolus.
b. a circular shaped bacterial chromosome.
joined strands of duplicated genetic material.
d. the centrioles and the microtubules they secrete.
C.

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Answer:

C

Explanation:

The answer to this question is c

Solve for C. F-32/1.8 =
F = 426F

Answers

.

You multiply °C by 1.8 and add 32 = °F. If you don’t have a calculator / smartphone, you double it and subtract 10%.

Ex. (°F to °C):

100°C *1.8 = 180+32 = 212°F = boiling point of water.

100*2–10% +32; 100*2=200–10% (20) =180, +32 = 212°F

°F to °C :

212 - 32 = 180. 180 / 1.8 =

Answer:

C =− 27.7

Explanation:

what type of light (energy) does each light start out as?

Answers

The conversion of light energy into chemical energy is dependent on the substance chlorophyll
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How does natural selection change the frequency of genes or traits over many generations? Biology students conducted an experiment mimicking genetic variation and coloration. Students used different colored beans to represent animals that might be prey: mice, for example. A student in each group was the predator: a hawk. Beans (mice) were randomly scattered on multicolored floor tiles, each color within four tiles. The hawk collected mice (beans) for 10 seconds. Mice not eaten reproduced. Three generations of data a shown in the table.Genetic variation helps to drive natural selection and potentially, evolution. Red, white, and striped beans (mice) represent offspring that are the product of meiosis and sexual reproduction. Black and speckled beans (mice) are the result of mutations. Using the student data analyze the effects of these mutations on natural selection.A) The color mutations provided a survival advantage to these two populations of mice.B) The advantage of the mutations is dependent on the environment and external conditions.C) While mutations provide genetic variation they did not play a role in natural selection.D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.Answer:D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival. How many joules of energy does a 100-watt light bulb use per hour? How fast would a 70-kg person have to run to have that amount of kinetic energy? HELP ME OUT PLEASE!!! Which function represents the relationship between x and y?D) y = x - 2C) y = x + 4B) y = 2xA) y = x + 2 Choose the answers that best complete each sentence.On average,are more expensive than other kinds of postsecondary schoolsThe cost of room and board incluiesTo save money, some students attend a university in their home state. When Zinc-67 is bombarded with a neutron, a gamma ray is emitted. What radioactive isotope is produced? Plzzzz help asap This table shows input and output values for a linear functionf()What is the positive difference of outputs for any two inputs thatare three values apart?Enter your answer in the box. Why are rocks like limestone and mudstone found in inland parts of South Australia? The farther from a mid-ocean ridge a rock sample is taken,the younger the rock is. Which of the following is a benefit of a tobacco-free life?A.healthier skin and teethB.increased risk of cancerC.increased phlegm productionD.all of the above In the middle of our sleep a burglar broke in our house. Write an EQUATION with an undefined slope: Which statement best explains how the structure of this text supports Woolfs purpose? The compare-contrast structure helps the reader understand how women artists in a variety of disciplines have been affected by cultural norms. The cause-effect structure supports the point of view that men, particularly fathers, are often the source of young womens oppression. The problem-solution structure supports the point of view that conditions for women artists in most disciplines have improved dramatically. The chronological structure illustrates the pressures discouraging women artists from pursuing their passions from youth to adulthood. PLEASE HELP QUESTION IN PICTURE Solve the quadratic equation by using a numeric approach.0.02x squared + 0.5x - 4 = 0a. x = 1.3 and x = -23.2c. x = 5.6 and x = -32.3b. x = 2.8 and x = -20.5d. x = 6.3 and x = -31.3 why is florence often called the ""cradle of the renaissance""? Someone plz help :( Side Lengths Angle Measures 6.6 in. 45 9.4 in. 90 6.6 in. 45 Based on the measurements, which answer best describes the triangle?obtuse scalene triangleobtuse isosceles triangleacute scalene triangleright isosceles triangleright scalene triangleright equilateral triangleacute isosceles triangle Complete the chart below using the information on the opposite page.What theythought, said, orbelieved about...THE DEBATE BETWEEN HAMILTON AND JEFFERSONHamiltonJeffersonNorthernersSouthernersBenened inPosition in theWhite House(Explain why)Creating a nationaldebt by taking onstate debts(Explain why)Creation of aNational Bank andusing tariffs togather income forthe government(Explain why)(Explain why)ImfaolInterpretation ofArticle I of theConstitution:STRICT or LOOSEinterpretation of theelastic clauseA key supporter ofHamilton andJefferson's policies what is 3 1/2 X 2 X 9 1/3 Need help please if anyone one can help me now I will like that Does warranty mean to fix any item you have if it breaks or replace it with a new one???