Scelta multipla
A new spindle apparatus begins to form in two separate haploid cells during which stage of meiosis?
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12. Meiosis
Introduction to Meiosis
Scelta multipla
At the end of meiosis II, each of the four resulting cells contains:
A
a haploid set of replicated chromosomes
B
a diploid set of unreplicated chromosomes
C
a haploid set of unreplicated chromosomes
D
a diploid set of replicated chromosomes
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Understand the purpose of meiosis: Meiosis is a type of cell division that reduces the chromosome number by half, producing four haploid cells from one diploid parent cell. This is essential for sexual reproduction.
Recall the stages of meiosis: Meiosis consists of two rounds of division, meiosis I and meiosis II. Meiosis I separates homologous chromosomes, while meiosis II separates sister chromatids.
Focus on meiosis II: At the end of meiosis II, the sister chromatids of each chromosome are separated into different cells. This results in cells with unreplicated chromosomes (single chromatids).
Determine the ploidy: Since meiosis reduces the chromosome number by half, the resulting cells are haploid (n), meaning they contain one set of chromosomes instead of two (as in diploid cells).
Combine the information: At the end of meiosis II, each of the four resulting cells contains a haploid set of unreplicated chromosomes, as the sister chromatids have been separated and the chromosome number has been halved.
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