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laiz [17]
2 years ago
7

Chromosomal mutations are changes in the normal structure or number of chromosomes. Changes in chromosome structure can result f

rom errors in meiosis or from exposure to radiation or other damaging agents. Certain changes in chromosome number can result from nondisjunction during either meiosis or mitosis. Both structural mutations and nondisjunction can play a role in trisomy 21, commonly known as Down syndrome.
Biology
1 answer:
Margaret [11]2 years ago
6 0

Answer:

Yes.

Explanation:

Yes, both structural mutations and nondisjunction can play an important role in trisomy 21 which also called down syndrome. In this type of syndrome, extra copy of chromosomes is present in the cell. Down syndrome is a genetic disorder that causes various defects in the children such as learning problems, facial features, vision and hearing problems.

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Paul [167]

Answer:

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Heart disease can affect a lot of organs, but listing them would be a pain. Here are the highlights: The heart and the lungs are intimately connected. This means that having heart disease may lead to having trouble breathing. You may have chest pains, and particularly in woman, it may affect the digestive system and cause stomach pain when eating.

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3 years ago
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Tpy6a [65]

The carbon cycle moves through virtually all of the earth's spheres.

<h3>Carbon cycle</h3>

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The carbon cycle moves through the air (atmosphere), oceans (hydrosphere), organisms (biosphere), and the soil (geosphere).

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More on the carbon cycle can be found here: brainly.com/question/1627609

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sergij07 [2.7K]

A.) Veins in the pulmonary circuit carry oxygen-rich blood

red blood cells are used to circulate oxygen through out the body, thus it is true.

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