Cell differentiation occurs roughly ____ hours after fertilization.
A) 6
B) 12
C) 24
D) 72
Correct Answer:
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Q11: A newborn baby is also called a(n)
Q12: _ begins at about Day 6 and
Q13: Renee, pregnant for the first time, wonders
Q14: _ are master cells that have the
Q15: Rachel and Kevin have been trying to
Q17: Sperm contain _ chromosomes' worth of genetic
Q18: A zygote is also called a(n) _.
A)
Q19: The human zygote contains _ chromosomes.
A) 13
B)
Q20: Cleavage refers to the process in which:
A)
Q21: The indifferent gonad develops into:
A) the circulatory
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