In a DNA double helix each type of base forms a stable base pair with only one type of base. When bases on an RNA strand are involved in base pairing, which bases can form stable base pairs with more than one type of base?
A) Adenine and uracil
B) Cytosine and uracil
C) Guanine and uracil
D) Uracil

Question

Quizplus · Accepted Answer

In RNA, guanine can form stable base pairs with cytosine and with uracil, while uracil can base pair with adenine and with guanine. Therefore, C is the best choice as it includes the base that can form stable pairs with more than one type of base.

In a DNA Double Helix Each Type of Base Forms