Only about 1 in 200 babies is born with a chromosomal abnormality. What is the main factor preventing this number from being much larger?
A) Spontaneous abortion early in pregnancy
B) Spontaneous abortion late in pregnancy
C) Damaged ova that are not fertilized
D) Rarity of sperm with chromosomal abnormalities
E) Ensuring the embryo's Rh compatibility early in pregnancy
Correct Answer:
Verified
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