Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Match list-\[\text{I}\] and list-\[\text{II}\] and select the correct answer using the codes| List\[\text{-I}\](Phase of meiosis) | List\[\text{-II}\](Event that occur) |
| Prophase\[\text{-I}\] | Crossing over occurs |
| Metaphase\[\text{-II}\] | Sister chromatids migrate to opposite poles |
| Anaphase\[\text{-I}\] | Homologous line up at equator in pairs |
A) 1, 2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: B
Solution :
The chromatids of two homologous chromosomes exchange homologous segments (crossing over) during prophase at pachytene In metaphase-H, the chromosomes become oriented on the equatorial plate and sister chromatids migrate to opposite poles.
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