Which of the following is a difference between phase I and phase II of meiosis?(1 point)

Question

Responses

Phase I results in two haploid daughter cells and phase II results in four haploid daughter cells.
Phase I results in two haploid daughter cells and phase II results in four haploid daughter cells.

Anaphase, metaphase, and telophase only occurs during phase I of meiosis.
Anaphase, metaphase, and telophase only occurs during phase I of meiosis.

Genetic variations can only occur during phase II of meiosis.
Genetic variations can only occur during phase II of meiosis.

Phase I results in daughter cells with 23 chromosomes each and phase II with 46 chromosomes each.

Answer 1

The correct response that highlights a difference between phase I and phase II of meiosis is:

Phase I results in two haploid daughter cells and phase II results in four haploid daughter cells.

In more detail:

• Meiosis consists of two main phases: Meiosis I and Meiosis II.
• During Meiosis I, homologous chromosomes are separated, resulting in two haploid daughter cells, each with half the number of chromosomes (23 chromosomes in humans).
• During Meiosis II, the two daughter cells from Meiosis I divide again, separating sister chromatids, resulting in a total of four haploid daughter cells, each still with 23 chromosomes.

The other responses are incorrect for the following reasons:

• Anaphase, metaphase, and telophase occur in both phases of meiosis, not just in phase I.
• Genetic variation occurs during both phase I (during crossing over) and phase II (through independent assortment and further separation of sister chromatids).
• Phase I results in daughter cells with 23 chromosomes each (haploid), while phase II also results in daughter cells with 23 chromosomes each, not 46.