BI-1628
Complementary base pairing
Biology · Secondary 4 · Easy · Complementary base pairing
A DNA molecule has 90 nucleotide pairs. Out of all the nucleotides, 40 contain the base A.
How many nucleotides in this DNA molecule contain the base T?
How many nucleotides in this DNA molecule contain the base T?
- 20
- 40
- 50
- 90
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