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Multiple Choice
During metaphase II of meiosis and metaphase of mitosis, what structures line up at the cell's equatorial plane?
A
Homologous chromosomes
B
Sister chromatids
C
Centrioles
D
Nucleoli
Verified step by step guidance
1
Understand the phases of cell division: Meiosis and mitosis are two types of cell division. Meiosis consists of two stages, meiosis I and meiosis II, while mitosis is a single stage process.
Identify the key structures involved: In both meiosis and mitosis, chromosomes are the key structures that line up at the cell's equatorial plane during metaphase.
Differentiate between homologous chromosomes and sister chromatids: Homologous chromosomes are pairs of chromosomes, one from each parent, that are similar but not identical. Sister chromatids are identical copies of a single chromosome, connected by a centromere.
Focus on metaphase II of meiosis: During metaphase II, sister chromatids line up at the equatorial plane. This is because meiosis II resembles mitosis, where the separation of sister chromatids occurs.
Compare with metaphase of mitosis: In metaphase of mitosis, sister chromatids also line up at the equatorial plane, ready to be pulled apart into two daughter cells.