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siniylev [52]
3 years ago
9

Select the correct answer.

Biology
2 answers:
vampirchik [111]3 years ago
8 0

Answer:

The answer is:

D.  A mutation causing uncontrolled cell division.

Uncontrolled cell division is very dangerous and harmful to an organism, it can cause diseases such as cancer. Hope that helps. :)

koban [17]3 years ago
6 0

Answer:

D. a mutation causing uncontrolled cell division

Explanation:

Mutations can be beneficial, neutral or harmful and therefore are not targeted, occurring at random. This means that a change in DNA can provide an improvement in the body, cause no advantage or harm or even trigger problems, as in the case of genetic diseases. Thus, a mutation does not arise to guarantee the evolution of an organism, but is completely random.

Beneficial mutations are those that bring benefits to the body by helping it survive, or by helping with a particular task. We can cite as beneficial mutations:

  • a mutation allowing moths to camouflage better on blackened tree bark
  • a mutation making Staphylococcus aureus resistant to the antibiotic methicillin
  • a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell
  • a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

On the other hand, an evil mutation is one that causes damage to the body, such as a mutation that causes uncontrolled cell division.

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A mutation in a gene that controls mitosis in cells may cause? a) cancer. b) cystic fibrosis. c) albinism. d) meiosis.
harkovskaia [24]
The answer is <span>a) cancer.

</span><span>Cells must control mitosis (cell division) in order to maintain normal cell function. If something happens to the control of mitosis, the healthy cells will divide uncontrollably. These new cells are cancer cells and they are also out of control. They will continue to divide uncontrollably, so the mass of the cancer cells will grow.
</span>Regarding other choices:
- cystic fibrosis is an inherited disorder of lungs and digestive system,
- albinism is a congenital disorder characterised by the absence of pigment in the skin and hair,
- meiosis is cell division resulting in the reduction of a chromosome number in half.
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3 years ago
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Angelina_Jolie [31]
Hi there!

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Answer : C
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5 0
3 years ago
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DedPeter [7]

Answer:

Explanation:

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4 0
3 years ago
Carbohydrate loading maximizes the amount of which substance stored in skeletal muscles?
Romashka [77]

Answer:

The correct answer is d. glycogen

Explanation:

Carbohydrate loading is a very common practice in athletes. It consists of eating carbohydrate-rich food specially before doing exercise. This practice maximizes the stored quantities of glycogen- polysacharide of storing of glucose- in muscle and liver.

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Licemer1 [7]

Answer:

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Explanation:

7 0
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