Biology
Grade-9
Easy
Question
Crossing overtakes place during which phase of meiosis I?
- Prophase I
- Metaphase I
- Anaphase I
- Telophase I
Hint:
The stage which is subdivides into leptotene, zygotene, pachytene and diplotene.
The correct answer is: Prophase I
- Crossing over occurs during pachytene stage of prophase 1 of meiosis
- Crossing over is responsible for genetic diversity
- During crossing over, homologous chromosomes will exchange gene segments between themselves
Homologous chromosomes are pair of similar chromosomes having similar structure and genes in locus.
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