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Question
Which of the following statements about sex chromosomes is true?
A)The Y chromosome is large and long, and the X chromosome carries most of the genetic material.
B)Both boys and girls are born with several pairs of X and Y chromosomes.
C)When gametes form in females, the X and Y chromosomes separate into different cells.
D)The sex of a new organism is determined by whether an X-bearing or a Y-bearing sperm fertilizes the ovum.
Answer
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