In Down syndrome,there is
A) no guanine.
B) no adenine.
C) no thymine.
D) no cytosine.
E) an extra chromosome in each cell.
Correct Answer:
Verified
Q74: On the DNA molecule,cytosine binds to
A) guanine.
B)
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A) studied dichotomous pea-plant traits.
B) began his
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A) single gene
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