Question 56
Chromosomes, DNA and Sex LinkageWhich of the following is not a correct base pairing on the DNA strand?
- A.Adenine, Thymine
- B.Cytosine, Guanine
- C.Guanine, Cytosine
- D.Uracil, Thymine
Show the answer and explanation
Answer: D (Uracil, Thymine)
Explanation
DNA pairs adenine with thymine and cytosine with guanine; uracil is found only in RNA.