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20-09-2020
Biology

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Alvinabatool Alvinabatool

20-09-2020

Answer:

1. This image shows crossing over of chromosomes.

2. First pair of chromosomes on left is called homologous chromosomes.

3. Crossing over takes place in pachytene stage of prophase I in meiosis.

4. In human egg cell XX while in human sperm cell XY.

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