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Biology · CELL CYCLE AND CELL DIVISION

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During pachytene stage of meiosis I, the enzyme recombinase mediates exchange of genetic material specifically between:

  1. Sister chromatids of non-homologous chromosomes
  2. Sister chromatids of the same homologous chromosome
  3. Kinetochores of paternal and maternal centromeres
  4. Non-sister chromatids of homologous chromosomes

Correct answer · Option 4

Non-sister chromatids of homologous chromosomes

Explanation

Crossing over is an enzyme-mediated process involving recombinase, characterized by exchange of genetic material between non-sister chromatids of homologous chromosomes.

Related questions

A diploid parent cell has 20 bivalents during prophase I of meiosis. What will be the number of chromosomes in each of the four daughter cells formed at the end of meiosis II?→During anaphase of mitosis, as daughter chromosomes migrate toward opposite poles, the orientation of their structural regions is such that:→In oocytes of certain vertebrates, which sub-stage of Prophase I can last for months or even years?→How does plant cytokinesis fundamentally differ from animal cytokinesis in terms of precursor structure and direction of wall/furrow formation?→
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