Question

A zygote which has an X chromosome inherited from the father will develop into a

• A. Boy
• B. Girl
• C. X chromosome does not determine the sex of a child
• D. Either boy or girl

Answer 1

Answer: (B)

Girl

XX chromosomal pair determines that a child is a female. XY combination determines that the child is a male. Thus, an egg of a female will always contain and X chromosome. 50% of the sperms contain X chromosome and 50% of sperms contain Y chromosome. Thus when an egg is fertilized by a sperm containing X chromosome, the combination of XX is formed thus, giving birth to a girl child.

So, the correct answer is 'Girl'