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love history [14]
3 years ago
7

Which cell cycle checkpoint determines whether the DNA has been replicated correctly? a. the cell growth checkpoint b. the DNA s

ynthesis checkpoint c. the mitosis checkpoint d. the G2 checkpoint
Biology
1 answer:
Zolol [24]3 years ago
8 0
B. The DNA synthesis checkpoint
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The resistance to the pesticide in insects occurred because
Gemiola [76]

Answer:

The correct answer is option B. favorable change in DNA of the insect.

Explanation:

At the point when a pesticide is first utilized, a little extent of the pest population may survive to introduction to the material because of their particular hereditary or genetic makeup. These surviving individuals pass along the gene resistance to particular insecticide or pesticide to next generation.

Upon introduction to pesticides, insects that don't have the resistance die eventually, in this manner permitting the insects with the resistance genes to endure and reproduce,creates more resistance insects.

Thus, the correct answer is option B. favorable change in DNA of the insect.

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3 years ago
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_______ is an example of an abiotic factor for a given animal. A. An organism that competes with it B. The air it breathes C. Th
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D. A mouse on which it feeds
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2 years ago
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Answer:

my classes are also boring

Explanation:

8 0
3 years ago
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Which of the following statements concerning viruses is true?
zysi [14]

Answer:

The second statement is correct: "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach."

Explanation:

The virus attaching itself to the host cell is the first step for it to successfully infect the host. Viruses are smaller in size than bacteria, so the first statement is incorrect. The third statement is incorrect because viruses do not have the necessary machinery to carry out protein synthesis or to generate ATP, this precisely why they seek out a host to begin with. The fourth statement is false because the virus will either have DNA or RNA, but both at the same time.

Hope that answers the question, have a great day!

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