BIOLOGY MIDDLE SCHOOL

How does meiosis I differ from meiosis II?A) The sister chromatids separate during meiosis I, but not during meiosis II.
B) The homologous chromosomes pair up during meiosis II, but not during meiosis I.
C) Two sex cells are produced as a result of meiosis II, but not as a result of meiosis I.
D) Chromosome number decreases by half as a result of meiosis I, but not as a result of meiosis II.

Answers

Answer 1
Answer: Option D is correct, I believe that option A is wrong because in meosis 1 sister chromatids are together option B is wrong because homologous chromosomes are in meiosis 1 not 2 option C is wrong because 4 sex cells are produced in the process of meosis 2
Answer 2
Answer:

Answer:

D because meiosis multiplies by 2

Explanation:

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Answers

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Explanation:

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Answers

Answer:

Chromatids of homologous chromosomes exchange corresponding segments.

Explanation:

The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. Homologous chromosomes are present in the meiosis I, but not in meiosis the II. After pairing up of in the prophase I, homologous chromosomes are able to exchange some corresponding segments and a cross-over occurs. Thanks to the cross-over event, each chromosome will have a new combination of genes. Without this, parents will produce gametes with only two different gene combinations.

Answer:

Chromatids of homologous chromosomes exchange corresponding segments.

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Answers

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Answers

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