What do we call the “X” chromosome that condenses and is “shut off?”

Answers

Answer 1

Answer:

One of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells, this is called X-inactivation or lyonization

Explanation:   This is all I could find, sorry if it's not what you need.


Related Questions

Which is not a disease of the respiratory system?
O COPD
O Asthma
O Diabetes

Answers

The answer is Diabetes

Answer:

I think non of them are correct. here is the reason

Explanation:

Diabetes has an impact on lung function, or how well you breathe. Some studies show that lung function gets worse as blood glucose levels increaseAsthma is a long-term disease of the lungs. It causes your airways to get inflamed and narrow, and it makes it hard to breathe.Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease that causes obstructed airflow from the lungs. Symptoms include breathing difficulty, cough, mucus (sputum) production and wheezing

please help me if your right ill give you anything please hellppp​

Answers

Answer:

C

Explanation:

An ecosystem food chain always starts with producers

Consumers then consume the energy from producers (prey on them)

Decomposers are organisms which break down dead material and provide energy to the environment for which producers can use which creates a looped cycle

What are the 4 structures all cells have in common?

Answers

Answer:

All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) ..

Explanation:

which body system gives your body structure?​

Answers

The skeletal system
The skeletal system I’m pretty sure

If the DNA sequence is --- AAA TAT CCG TAG CAA ATG, write the mRNA sequence, tRNA anticodon sequence, and the six amino acids for this.

Answers

adenine(A) binds with uracil(U)

Thymine(T) binds with Adenine(A)

guanine(G) binds with cytosine(C)

The complementary mRNA, which contains the codons is

UUU AUA GGC AUC GUU UAC

The complementary tRNa , which contains the anticodons is

AAA UAU CCG UAG CAA AUG

The six aminoacids are

phenylalanine-isoleucine-glycine-isoleucine-valine-tyrosine

The bases tend to exist as a pair in the DNA’s double helix structure. The bases are bonded by hydrogen bonds.

Their bonds are mentioned as follows:

Adenosine (A) is paired with thymine (T) Cytosine (C) is paired with guanine (G)

However, the base thymine (T) is present only in the nucleotide of DNA and the base uracil (U) is present only in the nucleotide of RNA.

Based on the understanding of the nucleotide and central dogma concepts, the following sequences are determined:

DNA Sequence:               AAA TAT CCG TAG CAA ATGmRNA Sequence:            UUU AUA GGC AUC GUU UACtRNA anticodon:              AAA UAU CCG UAG CAA AUGSix amino acids:              PHE ILE GLY ILE VAL TYR

Six amino acids are namely Phenylalanine, Isoleucine, Glycine, Isoleucine, Valine, and Tyrosine.

Thus, the DNA sequence is used to determine the other RNA sequences and amino acids.

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!!I NEED HELP!!
What is a benefit to utilizing fusion reactions instead of fission reactions?

A)Fusion reactions do not require any kind of radiation shielding to prevent exposure.

B)Fusion reactions do not produce harmful radiation and transuranium nuclides.

C)Fusion reactions can proceed in any temperature range.

D)Fusion reactions are easier to control and regulate.

Answers

Answer:

B)Fusion reactions do not produce harmful radiation and transuranium nuclides.

Explanation:

___________

The benefit of utilizing fusion reactions instead of fission reactions is that the fusion reaction does not produce harmful radiation and transuranium nuclides. Thus, the correct option for this question is B.

What is meant by Fusion?

Fusion may be defined as a type of process that significantly involves the combination of two or more atoms or molecules in order to form one larger molecule. This type of reaction normally occurred in nature as compared to fission.

The process of fission involves the disintegration of numerous smaller molecules or atoms from a larger one. This creates a lot of long-lived radioactive substances in nature that are harmful to live organisms. These types of reactions are not favored by nature.

Therefore, fusion reactions do not produce harmful radiation and transuranium nuclides are the benefit of utilizing fusion reactions instead of fission reactions. Thus, the correct option for this question is B.

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On February 21, a student observes that the Moon cannot be seen in the clear
night sky. On what date will the student not be able to see the Moon again in the
clear night sky?
A. February 28
B.March 7
C.March 14
D.March 21

Answers

Answer:

Okay so the answer is

C...

On February 21, a student observes that the Moon cannot be seen in the clear night sky. The date when the student is not able to see the Moon again is on March 21. The correct option is D.

What is the moon?

The moon is the only natural satellite of the earth. It is white and gray and visible from the earth on nights only. It is the fifth-largest satellite in the solar system.

The moon has different phases seen from the earth because the moon revolves around the sun. The four phases have been named full moon, no moon, C moon, and half moon.

In 28 days, the moon is not visible for one day, then the other day it is visible and C-shaped. The student was seen on February 21.

21 + 27 day means 21 march.

Thus, the correct option is D. March 21.

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Who is known as father of Zoology

A) Darwin B) Aristotle
C) Lamark D) Theophrastus

Answers

Answer:

Aristotle

Explanation:

Answer:

I believe the answer is B) Aristotle

Hope this helps :)

Can someone help me please, i cant find the answer to this question anywhere.

Answers

Answer:

light dependent reaction

C will be the answer to your question.

At which stage of meiosis do chromatids separate and become daughter chromosomes?

Answers

Answer:

Meiosis II

Explanation:

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anaphase 1
During anaphase 1 of meiosis, homologous chromosomes separate, and duplicated chromosomes (with centromeres intact) move to opposite poles. During anaphase of mitosis, sister chromatids separate. becoming daughter chromosomes that move to opposite poles.

Please answer these 4 questions!!!! All you have to do is fill in the blank with one of the words at the top!

Answers

Answer:
Sensory receptors respond to stimuli by sending messages to the brain for immediate behavior or storage as memories.
Mechanical Input enters the body using vibrations through the skin and ears.
Chemical input enters the body using molecules through the nose and mouth.
Electromagnetic input enters the body using waves through the eyes.

(Picture included) The student investigated the movement of water through plants. The plants were covered with clear plastic to capture any water released into the air. The plants received the same amount of water and sunlight.
Which conclusion is supported by these data?

- Leaves contain cells that store water for respiration.

- Leaves contain cells that control the release of water into the air.

-Leaves contain cells that absorb sunlight and water during photosynthesis.

- Leaves contain cells that stimulate growth by moving water through the plant.

Answers

Answer: C -Leaves contain cells that absorb sunlight and water during photosynthesis.

Explanation:

Leaves contain cells that absorb sunlight and water during photosynthesis. That's why after three hours the amount of water decreases as the number of leaves increases. Option (C) is correct.

What are stomata in leaves ?

Water is taken up by roots from the soil and moved as a liquid by xylem to the leaves. Small holes in the leaves allow CO2 to enter the leaf for photosynthesis and water to escape as a vapor.

The rate of gas exchange is regulated by stomata, which are pores present in the epidermis of leaves, stems, and other organs. A pair of specialized parenchyma cells called guard cells surrounds the pore, controlling the size of the stomatal opening.

They are essential to photosynthesis because they allow carbon dioxide to enter the leaf and oxygen to leave. Additionally, the stomata aid in transpiration, the process of releasing water vapor through a plant's leaves.

Thus, option (C) is correct about leaves.

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A student conducts an experiment to determine how the amount of water given to a plant affects its growth. Which of the following is not a constant or control for this experiment?

a. the type of plant
b. the amount of soil
c. the amount of water
d. the amount of time in the sun

Please select the best answer from the choices provided A B C D

Answers

Answer:

Its C

Explanation:

How does photosynthesis depend on chlorophyll?

Answers

Chlorophyll, the primary pigment used in photosynthesis, reflects green light and absorbs red and blue light most strongly. In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.

easy inherited or acquired question! please help me!
^-^

Answers

you learn to play the guitar, you are not born knowing how to play it, therefore it's acquired

How do Newton’s laws of motion explain why it is important to keep the ice smooth on a hockey rink so that players can pass a puck as quickly as possible?

Smooth ice reduces the inertia of the hockey puck.
Smooth ice increases the force used to accelerate the hockey puck.
Smooth ice reduces the unbalanced forces that would slow the hockey puck.
Smooth ice decreases the reaction force that the ice exerts on the hockey puck.

Answers

It is important to keep the ice smooth on a hockey rink because this reduces the unbalanced forces that would slow the hockey puck.

Frictional forces

Frictional forces are opposing forces to the motion of an object on a platform.

In order to be able to pass a puck as quickly as possible on a hockey rink, there should be a minimal frictional force on the ice surface on which the puck moves.

With minimal opposing forces, the puck will move as unhindered as possible and passing as fast as possible would be easy.

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Answer:

C

Explanation:

Identify the parts of a good hypothesis?

Answers

Answer:

these are some of the answers i could come up with hope this helps

Explanation:

a good hypothesis is stated in the if then format.

a good hypothesis is testable

a good hypothesis is written clearly

a good hypothesis is educated

What are the definitions for gene pool and allele frequency?
A. the alleles for a species, the number of times a gene appears
B.the number of alleles: genes that appear in a population
C.all the alleles that appear in a population: the number of times the alleles appear
D.all the genes that are present in a population; the number of times an allele occurs in a gene pool​

Answers

Answer:

Allele frequency- the percentage with which a specific allele is found in a population. Gene Pool- the sum total of all alleles present in all populations of a particular species. ... evolution involved a change in allele frequency in a population's gene pool over a number of generations.

Explanation:

I hope this helps :)

A gene pool is defined as the number of alleles. and the allele frequency is defined as the  genes that appear in a population. Therefore, option B is correct.

What is gene pool ?

A gene pool is the collection of all the genes (including alleles) found in a population or species that is capable of reproduction. A big gene pool has a wide range of genetic diversity and is more resilient to environmental stresses.

A gene pool is the collection of all the genes, including all the various alleles, in any population that mates with other individuals from the same or different species. The percentage of an allele within a population is known as the allele frequency.

A population's gene pool will include a high number of genes with a wide range of frequencies. Gene frequencies are proportions of various alleles within a population, and in any given generation, these frequencies will rely on those of the previous generation.

Thus, option B is correct.

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Need help immediately please !!!

Answers

Answer:

smooth green would be ssgg

smooth yellow would be ssGg

constricted green would be Ssgg

and constricted yellow would be SsGg

The Gastropod is found in multiple rock layers. What does this indicate?

Answers

Answer:it adds layer of rocks

Explanation:

Because fossils add up on top of each other

Summarize the order of events from egg and sperm to embryo?
(ill give brainliest)

Answers

Sperm fertilizes the egg, the egg turns into a zygote, the zygote then goes through the process of cell division and turns into an embryo.  

• Post ejaculation, the sperm cells meet the egg, and fusion between both the cells takes place.  

• The fusion results in the formation of a single cell, which comprises the genetic material from both the egg cell and the sperm cell, this is called a zygote.  

• The zygote further divides into sixteen cells stage called the morula.  

Post three days after the formation of morula, formation of the embryo takes place. The embryo attaches to the wall of the mother's uterus.  

Thus, egg and sperm fuse and give rise to the zygote, this zygote further undergoes several divisions and eventually results in the formation of an embryo.  

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can y'all answer option 1 plz

Answers

Woke up one day with my head full of motivations and goals for the day. I started of by waking early in the morning to see my family start to gather resources to build and burn woods. I helped my father collect wood logs, went with my brother to feed animals and lastly played with my siblings. My mother told me “Family is always a priority!” And i understand that virtue now because my family means a lot to me and without them i wouldn’t be here

Which phrase best describes an individual organ?
A. Meets all the needs of an organism
B. The simplest unit of life
C. Made of one kind of cell
ОО
D. Made of different kinds of tissues
SUBMIT

Answers

Answer:

C. Made of one kind of cell

I think this is the answer so if I am wrong pls correct me!

In which medium will a sound wave travel fastest?
ice at 0°C
iron at 150°C
liquid water at 75°C
helium gas at 50°C

Answers

Answer:

liquid water at 75° C

Explanation:

Hope this helps:)

Answer:

liquid water at 75° C

Explanation:

____________ polymerase is used to add new RNA nucleotides to make RNA.

Answers

RNA polymerase is used to add new RNA nucleotides to produce RNA.

RNA polymerase

It is the enzyme responsible for copying the sequence of DNA into the sequence of RNA during the process of transcription.

The information encoded in DNA is used to produce RNA during the process of transcription.

The production of RNA takes place by the enzyme RNA polymerase, by using the antisense strand of the DNA as the template by supplementing the complementary RNA nucleotides to the 3 prime terminal of the developing strand.

The enzyme RNA polymerase combines with the DNA at a sequence known as the promoter at the time of the beginning of transcription.

Thus, the given blank can be filled with RNA.

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TIMED PLS HELP!!
Which of the following distinguishes how large supermarket chains are able to provide the public with fruits and vegetables for lower costs?
A. Large supermarket chains always provide the customer with the best prices, even if it means sacrificing their own profits.
B. Large supermarket chains usually buy food from overseas, which is generally cheaper than buying local foods
C. Large supermarket chains can negotiate prices because they have such a strong presence in the agricultural community
D. Large supermarket chains often buy food from farms that use cheap and unsustainable farming practices.

Answers

Answer:

C. Large supermarket chains can negotiate prices because they have such a strong presence in the agricultural community. Im sorry no one answers these

If cup b and cup e represent different ecosystems, how are they different

Answers

If you’re talking about bewibes

difference between D and DD with same band size is 1”, the same measurement difference as between an A cup and a B cup, a B cup and a C cup, a C cup and a D cup.
They’re different because there is 2 types of factors in our ecosystem. First is Abiotic factor in which non living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems while biotic factor is where any living component that affects another organism pr the shapes the ecosystem. Both components plays a huge role in our ecosystem

The human digestive system is comprised of specialized cells, tissues, and organs.

Which lists the parts from least complex to most complex?
a. muscle tissue, muscle cell, stomach
b. muscle cell, muscle tissue, stomach
c. stomach, muscle tissue, muscle cell
d. stomach, muscle cell, muscle tissue
Thank you!

Answers

Answer

OPTION B.

because from muscle cell ,muscle tissue arise and then after development  of muscle tissues organs are formed.

The parts from least complex to most complex is muscle cell, muscle tissue, stomach. So, the correct option is (B).

What is Digestive System?

The human digestive system consists of the gastrointestinal tract with the accessory organs of digestion which involve breaking down food into smaller and smaller components until they can be absorbed and assimilated into the body.

The GI tract consists of series of hollow organs which is joined in a long, twisting tube from the mouth to the anus. The processes of digestion consists of six processes:-

1. Ingestion

2. Propulsion

3. Mechanical or physical digestion

4. Chemical digestion

5. Absorption

6. Defecation.

The complexity of the digestive system involves muscle cell, muscle tissue, stomach and organ system from least complex to most complex.

Thus, the parts from least complex to most complex is muscle cell, muscle tissue, stomach. So, the correct option is (B).

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PLEASE HELP
Experimental question: At what pH and amount of substrate would the enzyme amylase would have the most amount of product (enzyme activity)?

Whats your Hypothesis
Answer:

Answers

My hypothesis will be that the enzyme pH will have a hot temperature and will make small amounts of the enzymes activity because it takes time to process.

A sequence of a DNA template strand is shown below.
3’ T C C A A T G G C T T A T T T G C A 5’



Which of these is the correct amino acid chain produced from the DNA template strand?

Arginine – Leucine - Proline – Asparagine – Lysine – Arginine

Serine - Leucine – Proline – Asparagine – Lysine – Arginine

Tryptophan – Phenylalanine – Leucine – Glycine – Asparagine – Phenylalanine

Tryptophan – Phenylalanine – Leucine – Glycine – Asparagine - Serine

Answers

it’s the first option!

Explanation: It translates to agg uua ccg aau aaa cgu and the bases are Arg, Leu, Pro, Asp, Lys, and Arg. In that order. Hope this helps!

The correct amino acid chain produced from the DNA template strand will be Arginine – Leucine - Proline – Asparagine – Lysine – Arginine. The correct option is A.

What is amino acid?

Amino acids are molecules that form proteins when they combine. The building blocks of life are amino acids and proteins.

Amino acids are left over after proteins are digested or broken down. To help the body, the human body uses amino acids to make proteins: Food should be broken down.

A codon is a three-nucleotide (DNA or RNA) sequence that forms a unit of genomic information encoding a specific amino acid or signaling the end of protein synthesis (stop signals).

There are 64 different codons, 61 of which specify amino acids and three of which serve as stop signals.

The amino acid sequence for the given template will be:

3' AGGUUACCGAAUAAACGU 5'

So, as per three letter code, the amino acid chain will be:

Arginine – Leucine - Proline – Asparagine – Lysine – Arginine

Thus, the correct option is A.

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Other Questions
1.)A square has a perimeter of32x + 16. What is the length of one side of the square? Jayden sows pea seeds and watches them grow into seedlings. To better understand photosynthesis, he keeps one pea plant under green light and the other pea plant under yellow light. What would likely be the result in a few days?A. Neither pea plants will conduct photosynthesis.B. The pea plant under yellow light will grow more than the pea plant under green light.C. Both pea plants will grow at the same rate.D. The pea plant under green light will conduct more photosynthesis than the pea plant under yellow light.E. The plant under yellow light will start wilting.TipThe color of light used for photosynthesis depends on the pigment in the plant.For example, green plants with chlorophylls and carotenoids have a maximum activity with violet-blue and red light. Basically, whatever color the plant is, that is the color of light that it is reflecting instead of absorbing and using for photosynthesis. Some sugar molecules are absorbed from the small intestine into the blood by active transport. Explain why the rate of absorption of these can depend on the concentration of oxygen in the cells lining the small intestine? 32% of =8 please. Thank you. Which of the following statements is FALSE?a.The United States increased its support for Texas after the events of the Alamo and Goliad.b.Houston retreated so that he would have time to train and build his army.c.Santa Anna surrendered to Houston after three days of hiding.d.The Mexican army at San Jacinto was caught off guard during siesta. According the to Great Lakes food web, if the Mallard Ducks population was removed from the ecosystem it would impact the food web byA Causing the Great Blue Heron to decrease.B Causing the Microscopic Plants population to decrease.C Causing the Grass population to increase. how can you tell if an ordered pair (x,y) is a solution or a system of linear equations? What is the reciprocal of 7? Enter your answer in the space below, using a slash mark (/) as a fraction bar when needed. Which of the following scenarios BEST illustrates the role of money as a medium of exchange?AJane writes a $600 check to pay her rent.BJane has a $500 balance on her credit card.CJane puts 5% of her income into savings each month.DJane uses her investments as collateral for a business loan. The model below represents an equation. Which value of X makes the equation true? where dose (3.5,1.75) go on a coordinate plane? explain how extending credit builds customer loyalty. PLEASE HURRY, ILL MARK YOU BRAINLEST!! Select the correct answer.David and Gino each have coins with the same total value. David has a mixture of nickels and dimes, and he has 8 more nickels than he hasdimes. Gino only has nickels, and he has 20 more nickels than David.What is the value of David's coins?.$1.90.$1.50OC. $1.45OD.$0.55 please help me ;-; The number of fish in a lake has been declining exponentially at a rate of 6% a year. If there are 21,000 fish currently in the lake, how many will there be in 8 years?A. 12,801B. 33,471C. 118,440D. 14,487 HERE is the riddle!! Pollen _____. the flower version Is there 1 nice person that can help me? Whenever someone answers this that say they're nice but they never help me : ( hellp what are the answers I NEED HELP FAST need help on work!!! Millie sells muffins for $3 each. Her cost of goods sold (COGS) is $1 and her operating expenses are 50 per muffin. What is Millie's profit permuffin?