Open Question
If you followed a woman's cells through meiosis, at what stage of meiosis would the amount of DNA in one of these cells be equal to the amount of DNA in one of her G1 phase (before DNA replication) kidney cells?
12. Meiosis
Meiosis II
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Which statement describes a major difference between meiosis II and mitosis in a diploid animal?
a) Homologous chromosomes align on the metaphase plate in meiosis II.
b) Sister chromatids separate in mitosis, and homologous chromosomes separate in meiosis II.
c) Meiosis II occurs in a haploid cell, while mitosis occurs in diploid cells.
d) Meiosis II is known as 'reductional division' while mitosis is known as 'equatorial division'.
A
Homologous chromosomes align on the metaphase plate in meiosis II.
B
Sister chromatids separate in mitosis, and homologous chromosomes separate in meiosis II.
C
Meiosis II occurs in a haploid cell, while mitosis occurs in diploid cells.
D
Meiosis II is known as 'reductional division' while mitosis is known as 'equatorial division'.
Verified step by step guidance1
Understand the context of meiosis and mitosis: Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid cells, while mitosis results in two diploid cells identical to the parent cell.
Identify the phases of meiosis II and mitosis: Meiosis II is similar to mitosis in that it involves the separation of sister chromatids, but it occurs in haploid cells. Mitosis involves the separation of sister chromatids in diploid cells.
Clarify the concept of 'reductional division' and 'equatorial division': Meiosis I is known as reductional division because it reduces the chromosome number, while meiosis II and mitosis are equatorial divisions where sister chromatids are separated.
Examine the alignment of chromosomes: In meiosis II, sister chromatids align on the metaphase plate, similar to mitosis, but meiosis II occurs in haploid cells, whereas mitosis occurs in diploid cells.
Differentiate between the separation of chromosomes: In mitosis, sister chromatids separate, while in meiosis I, homologous chromosomes separate. Meiosis II involves the separation of sister chromatids, similar to mitosis.
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