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diamong [38]
3 years ago
13

Which process MUST occur before mitosis and meiosis can occur?

Biology
2 answers:
Nikolay [14]3 years ago
8 0
<span>What MUST occur before mitosis and meiosis can occur is B) DNA replication. DNA replication is a process of copying DNA into an identical copy. Before mitosis, the genetic material of the mother cell must duplicate so that each daughter cell have the same amount as the mother cell. On the other hand, meiosis is a reductive division. But meiosis II is similar to mitosis, so DNA replication is also necessary.</span>
Alborosie3 years ago
6 0

DNA replication is a process of copying DNA into an identical copy.

So the right answer is b) DNA replication


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Bear pigmentation is subject to epistasis of the B alleles by the d alleles. B (black) is dominant over b (brown). D is dominant
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Answer:

9/16 black, 3/16 brown, 4/16 white

Explanation:

             BD         Bd          bD         bd

BD     BBDD      BBDd     BbDD     BbDd

Bd      BBDd      BBdd     BbDd      Bbdd

bD      BbDD     BbDd      bbDD     bbDd

bd       BbDd    Bbdd       bbDd     bbdd

A punnet square can be described as a diagram which is made to predict the genotype as well as the phenotypes of the offsprings of a cross.

To study the epistatis nature of the pigmentation in bear, a punnet square was made and the results of the punnet square are shown above.

The results of the punnet square show that the cross between two bears will have the chances of producing 9/16 black bears, 3/16 brown bears and 4/16 white bears.

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3 years ago
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wolverine [178]

Answer:

A, Band C

Explanation:

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8 0
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Item 10
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Answer:

Answer is A signal is sent down an exon within a nerve cell.

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5 0
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Which of the following processes includes all the others?
Vinvika [58]

Answer:

Passive transport.

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Thus, the correct answer is option (c).

7 0
3 years ago
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