1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Artist 52 [7]
2 years ago
12

All female mammals have one active X chromosome per cell instead of two. What causes this to happen? (A) activation of the XIST

gene on the X chromosome that will become the Barr body (B) activation of the BARR gene on one X chromosome, which then becomes inactive (C) inactivation of the XIST gene on the X chromosome derived from the male parent (D) attachment of methyl (CH₃) groups to the X chromosome that will remain active
Biology
1 answer:
Eddi Din [679]2 years ago
7 0

Correct option C)  inactivation of the XIST gene on the X chromosome derived from the male parent.

Embryonic development in females and one of the X chromosomes is rand come and permanently inactivated is cells than egg cells. The phenomenon is called X- inactivation or lyonization.

X- inactivation which is called lhyonization , is process by which one of the copies of Chromosome inactivated in therian female mammals. The inactivated X- chromosome is silenced by being packaged into a transcriptionally inactive structure called hetero chromatin.

In case of both X chromosomes and all of their genes were to be activate in women and they would have twice as many copies of the opposite that they have in men.

To learn more about  X- inactivation or lyonization here

brainly.com/question/1136718

#SPJ4

You might be interested in
Select the true statements about the electron transport chain.
almond37 [142]

Answer: A. In the electron transport chain, a series of reactions move electrons through carriers.

B. The products of the electron transport chain are H2O and either NAD or FAD.

E. The electron transport chain is a series of oxidation-reduction reactions that occur in the inner mitochondrial membrane.

Explanation:

the best suitable statement is it transfers energy stepwise from one compound to another, The electron transport chain is a series of proteins and organic molecules found in the inner membrane of the mitochondria. Electrons are transferred from one member of the transport chain to another in a series of redox reactions.

5 0
4 years ago
Read 2 more answers
A zebra’s diet consists of grasses, shrubs, and leaves. A zebra doesn’t eat other animals to survive. What kind of an animal is
Morgarella [4.7K]
The zebra is an herbivore.

3 0
3 years ago
A total of _____ amino acids compose the majority of protein in living things and nine are _____ to human
Delicious77 [7]

Most proteins in living organisms are composed of 40 amino acid residues in total, and nine of those are crucial for human health.

Which majority of amino acids make up proteins in living things?

  • Only twenty different amino acids, each with a distinct side chain, make up proteins. Different chemistries can be found in the side chains of amino acids. The majority of amino acids contain side chains that are nonpolar.
  • There are nine essential amino acids:
  1. tryptophan
  2. valine
  3. isoleucine
  4. leucine
  5. lysine
  6. methionine
  7. phenylalanine
  8. threonine
  9. methionine

What Constitutes Proteins?

  • Amino acids are the basic units of proteins. They are tiny chemical compounds with an alpha (central) carbon coupled to an amino group, a carboxylic acid group, hydrogens, and a changeable element known as a side chain.
  • A protein is made up of a lengthy chain of amino acids that are connected by peptide bonds. The biological process that links the carboxyl unit of one amino acid towards the amino group of a nearby amino acid results in the extraction of a water molecule, forming peptide bonds. The main structure of a protein is thought to be its linear amino acid sequence.

Learn more about amino acids here:

brainly.com/question/11843803

#SPJ4

8 0
1 year ago
PLEASE HELP WILL MARK BRAINLIEST
Paul [167]

Answer:

repair the DNA

Explanation:

5 0
3 years ago
Read 2 more answers
If a single mutation turns off the growth of some pairs of legs within and organism, what's most likely effected
Elina [12.6K]

Hi Mark


The answer is : D

A hox gene likely affected


I hope that's help:)

7 0
3 years ago
Other questions:
  • When Charles Darwin considered wings of birds, he famously propose 1 ): Google. hhmi biointeractive great transition heime 17:28
    14·1 answer
  • A(n) ________ has charge but no mass, whereas a(n) ________ has mass but no charge. electron; neutron neutron; electron neutron;
    13·1 answer
  • Cellulose is found throughout the cell walls of plant cells. Cellulose makes cell walls rigid, which indicates that cellulose is
    9·2 answers
  • Corn develops from a seeling with a single cotyledon, displays parallel veins on its leaves and produces monosulcate pollen. It
    14·1 answer
  • Sex-linked traits are passed from parent to child on a sex
    15·1 answer
  • Why are liners laid down at the bottom of a landfill before waste is deposited in the landfill?
    9·2 answers
  • If plants are watered,then growth ​
    8·1 answer
  • Which phase of mitosis is shown in the diagram?
    8·2 answers
  • Identify one object that has energy, and explain why this object has energy.
    14·1 answer
  • Ron is observing an onion cell on a slide under a microscope. He sees chromatids being pulled to opposite ends of the cell. Whic
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!