Biology
Grade-8
Easy
Question
Crossing over takes place during which phase of meiosis I?
- Prophase I
- Metaphase I
- Anaphase I
- Telophase I
Hint:
The phase which has substages as follows: leptotene, zygotene, pachytene, diplotene and diakinesis.
The correct answer is: Prophase I
- Crossing over occurs during prophase 1 of meiosis.
- Prophase 1 is subdivided into leptotene, zygotene, pachytene, diplotene and diakinesis.
- During the pachytene stage of prophase 1, crossing over occurs.
- Crossing over is the process during which the exchange of genetic material between the non-sister chromatids occurs resulting in recombination.
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