Question

8 multiple choice 1 point which occurs in mitosis but not meiosis i? sister chromatid separation homologous recombination crossing over reduction of chromosome number

Explanation:

• Sister chromatid separation: In mitosis, sister chromatids separate during anaphase. In meiosis I, homologous chromosomes separate, and sister chromatids remain attached (they separate in meiosis II).
• Homologous recombination: Occurs in meiosis I (prophase I) for genetic variation, not in mitosis.
• Crossing over: A part of homologous recombination in meiosis I (prophase I), not in mitosis.
• Reduction of chromosome number: Happens in meiosis I (as it is the reductional division), while mitosis maintains the chromosome number.

Answer:

A. Sister chromatid separation