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nadya68 [22]
3 years ago
7

How do some cells become brain cells and others become skin cells, when the DNA in ALL the cells is exactly the same. In other w

ords, if the instructions are exactly the same, how does one cell become a brain cell and another a skin cell?
Biology
1 answer:
serg [7]3 years ago
8 0

This occurs through the process of cell specialization, where in some cells genes are active whereas in others they are not.

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tatyana61 [14]

Answer:

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Explanation:

Proteins are long-chain macromolecules made up of amino acid monomers.  Amino acids are organic compounds with an amine and carbonyl group. They contain Carbon, Hydrogen, and Oxygen, along with Nitrogen as their basic elements.  They are often found in meat, fish, dairy and legumes.

In the body, proteins are important immunomodulation and the immune response. The body produces antibodies (Ab) or immunoglobulin (Ig) to help neutralize or tag foreign invaders by binding to specific antigens on the pathogen's surface.

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Which of the following is characteristic of ciliates? A. They can exchange genetic material with other ciliates by the process o
eimsori [14]

Answer:

The correct answer is option B.

Explanation:

The ciliates are a group of the organism of protozoans characterized by the presence of cilia, a hair-like structure, that appears to be the same as the eukaryotic flagella.

These organisms are shorter in size and found in high numbers. They normally have more than one nuclei so known as multinucleate. They found in the freshwater.

Thus, the correct answer is option B.

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