Multiple Choice
A karyotype is __________.
12. Meiosis
Homologous Chromosomes
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Which of the following occurs in meiosis but not mitosis?
A
The cells formed have the same combination of genes as found in the initial cell.
B
The nuclear envelope disappears.
C
Sister chromatids separate and move to opposite ends of the spindle.
D
A spindle apparatus forms.
E
Homologous chromosomes separate.
Verified step by step guidance1
Understand the difference between mitosis and meiosis: Mitosis results in two identical daughter cells, while meiosis results in four genetically diverse cells.
Identify the key stages of meiosis: Meiosis consists of two rounds of division, meiosis I and meiosis II, each with distinct phases.
Focus on meiosis I: During this stage, homologous chromosomes pair up and then separate, which is a unique feature of meiosis.
Compare with mitosis: In mitosis, homologous chromosomes do not pair up and separate; instead, sister chromatids separate during anaphase.
Conclude that the separation of homologous chromosomes is a process that occurs in meiosis but not in mitosis, making it the correct answer.
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