How many sex chromosomes does a normal human female inherit from her mother? (A) 1 (B) 2 (C) 23 (D) 46 - HSC - SSCE Biology - Question 9 - 2003 - Paper 1

A normal human female has two sex chromosomes, which are both X chromosomes (XX). Each parent contributes one sex chromosome to the child. Since the question specifically asks how many sex chromosomes a normal human female inherits from her mother, the answer is 1 X chromosome from the mother. Therefore, the correct answer is (B) 2, as she will inherit one X from her mother and one X from her father.