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Question: Answered & Verified by Expert
A mother in a family of five daughters is expecting her sixth baby. The chance of its being a son is
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A Zero
  • B 25%
  • C 50%
  • D 100%
Solution:
1451 Upvotes Verified Answer
The correct answer is: 50%
Humans have 22 pairs of autosomes and 1 pair of sex chromosomes which are XX in females and XY in males. So, everytime the chances of son or daughter is 50-50% depending upon which sex chromosome is contributed by father in sperm.

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