Why is mitochondrial DNA inherited only from mothers and not fathers?
A) Sperm mitochondria fuse into the mother's egg but disintegrate soon after.
B) Sperm cells do not need mitochondria for their function and so have none.
C) Sperm do not contribute their mitochondria to the zygote during fertilization.
D) Mitochondria of sperm are defective and not functional due to mutation.
E) Males do not have mitochondrial DNA in any of their cells,including sperm.
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