Down syndrome is due to an extra
A) X chromosome.
B) Y chromosome.
C) autosome.
D) X chromosome or an extra Y chromosome.
Correct Answer:
Verified
Q5: The sex of a child is determined
Q6: In adults,the cell used most often for
Q7: Another name for Down syndrome is
A)trisomy 23.
B)monosomy
Q8: Turner syndrome is due to a(an)
A)extra sex
Q9: Most nondisjunction embryos fail to survive.
Q11: What procedure is used to obtain embryonic
Q12: Nondisjunction can only occur with autosomes,not the
Q13: A mature red blood cell is useful
Q14: Trisomy could result from
A)an ovum of 24
Q15: Monosomy could result from
A)an ovum of 24
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