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slava [35]
3 years ago
10

List and briefly describe the three main cell cycle checkpoints.

Biology
1 answer:
V125BC [204]3 years ago
3 0

Answer:

The cell cycle is controlled at three checkpoints. The integrity of the DNA is assessed at the G1 checkpoint. Proper chromosome duplication is assessed at the G2 checkpoint. Attachment of each kinetochore to a spindle fiber is assessed at the M checkpoint.

Explanation:

good luck

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A frog has more offspring than can survive on available resources.
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Which of the following creates variation through and random combining of genetic information?
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Answer:

B. mutations

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In a population with two alleles, B and b, the allele frequency of B=0.59. What would be the frequency of the heterozygotes if t
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Answer:

0.483

Explanation:

The given population is in Hardy-Weinberg equilibrium. If the gene has two alleles, the sum total of the frequencies of these two alleles will be one.  

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So, 2pq= 2 x 0.59 x 0.41 = 0.483

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3 years ago
Which is not true in the following statements.
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