Question

In a family, a girl and her brother are usually said to be more closely related as compared to girl and her first cousin on evolutionary basis. This is mainly because:

Statement 1: They have a common ancestor in the second generation.

Statement 1: They have a common ancestor in the first generation.

• A. Only statement 1 is correct
• B. Both the statements are correct
• C. Both the statements are incorrect
• D. Only statement 2 is correct

Answer 1

The correct option is D Only statement 2 is correct

Girl will be more closely related to her brother as compared to her first cousin because girl and her brother share a common ancestor in the first generation i.e., their parents. On the other hand, she shares a common ancestor (grand parents) in the second generation with her cousin.