There are many more male conceptions than female conceptions because
A. the intrauterine environment is more hostile to female conceptions.
B. sperm containing the smaller Y chromosome are lighter so they can swim faster and reach the egg first.
C. there are fewer sperm that contain an X chromosome than contain a Y chromosome.
D. more eggs contain Y chromosomes than X chromosomes.
Answer: B
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Indicate whether the statement is true or false