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elixir [45]
3 years ago
11

Which is needed before meiosis can begin? Group of answer choices DNA replication aneuploidy corpus luteum recombination

Biology
1 answer:
Svetlanka [38]3 years ago
5 0

Answer:

DNA replication

Explanation:

For the most part of a cell's cycle, each chromosome has only one chromatid.

Before entering meiosis, a diploid cell (which contains a set of chromosomes from one parent and another set from the other parent) first doubles its DNA, and the cell will start division with each chromosome having 2 sister chromatids.

During meiosis I homologous chromosomes (the maternal and paternal sets) separate, and during meiosis II the sister chromatids separate. As a result, 4 daughter cells with half the original diploid chromosome number and one chromatid per chromosome are produced.

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6 0
3 years ago
Someone please help me
lbvjy [14]

Answer:

Option B: Molecule 2

Explanation:

'Equilibrium of a molecule inside and outside a cell' means that there are similar numbers of that molecule on the inside and the outside. (hence 'equilibrium')

The number of each molecule is as follows:

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Hope this helped!

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3 years ago
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olga55 [171]

Answer:

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5 0
3 years ago
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True or False? As the energy is transferred from producers to consumers, energy is gained.
Natali [406]
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jeyben [28]

Answer:

The answer is false. The correct answer is cerebral aqueduct.

Explanation:

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