Fraternal twins
A) are the result of one fertilized egg dividing to become two individuals.
B) do not usually have the same DNA.
C) result from two eggs being fertilized by one sperm.
D) result from one egg being fertilized by two sperms.
Correct Answer:
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Q30: The placenta
A) conducts the mother's blood directly
Q31: The menstrual cycle and ovulation are coordinated
A)
Q32: The stimulus for contractions of the uterus
Q33: The process of fertilizing eggs outside the
Q34: Fraternal twins
A) have exact copies of each
Q36: Fraternal twins
A) must be of the same
Q37: Identical twins
A) are the result of one
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A) often seek sex change (gender
Q39: An intrauterine device
A) is used to cause
Q40: Early cell division in an embryo is
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