What determines the development of male or female sex organs in the human embryo?
A) environmental factors
B) genes on the X chromosome
C) genes on the Y chromosome
D) genes on both the X and Y chromosomes
E) neither the X nor Y chromosomes
Correct Answer:
Verified
Q39: During gastrulation in sea urchins, invagination produces
Q40: During frog gastrulation, cells of the _
Q41: In vertebrates, cells of the neural crest
Q42: When the SRY gene of the Y
Q43: Which event occurs in a human fetus
Q45: After childbirth, _ in the mother.
A) oxytocin
Q46: Normally, gestation lasts for approximately _ weeks
Q47: In vertebrates, organogenesis begins with _.
A) neurulation
B)
Q48: As the period of fetal growth comes
Q49: Determination _, while differentiation _.
A) is a
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