NEET Biology question
Match the following columns.
| Column I | Column II | |---|---| | (A) Non-parental gene exchange | (1) Crossing over | | (B) Non-sister chromatids | (2) X and Y | | (C) Sex chromosome | (3) Sex-linked disease | | (D) Haemophilia | (4) Recombination |
Answer: (A)
Solution
A non-parental gene exchange is the outcome of recombination, matching A(4); crossing over physically occurs only between non-sister chromatids of homologous chromosomes (not between sister
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