객관식
How many bivalents are formed in a cell with 20 chromosomes at the beginning of Meiosis I?
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12. Meiosis
Introduction to Meiosis
객관식
During which phase of meiosis do homologous chromosomes separate?
A
Metaphase II
B
Telophase I
C
Prophase I
D
Anaphase I
검증된 단계별 안내1
Understand that meiosis is a type of cell division that reduces the chromosome number by half, resulting in the production of four genetically distinct haploid cells.
Recall that meiosis consists of two consecutive divisions: Meiosis I and Meiosis II. Each division has its own phases: Prophase, Metaphase, Anaphase, and Telophase.
In Meiosis I, homologous chromosomes (pairs of chromosomes, one from each parent) are separated. This is different from Meiosis II, where sister chromatids are separated.
Focus on Anaphase I of Meiosis I, where the homologous chromosomes are pulled apart to opposite poles of the cell. This is the key event that distinguishes Anaphase I from other phases.
Review the options given: Metaphase II, Telophase I, Prophase I, and Anaphase I. Recognize that Anaphase I is the phase where homologous chromosomes separate, which is the correct answer.
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