Fertilization is the
A) penetration of an ovum by a sperm
B) separation of the zona pellucida and cells of the corona radiata
C) union of an egg and a sperm
D) union of the sperm and ovum pronuclei
Correct Answer:
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Q4: All of the following occur during the
Q5: Capacitation is a process that
A) weakens the
Q6: The longest period in prenatal development is
Q7: The single cell that is the result
Q8: The amnion,chorion,and placenta form during the preimplantation
Q10: The second meiotic division in oogenesis is
Q11: Recessive genes express themselves even when they
Q12: Trophoblast cells secrete human chorionic gonadotropin,which has
Q13: The ectoderm,mesoderm,and endoderm develop during the first
Q14: How long does the pre-embryonic period last?
A)
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