In the structure of DNA, which nucleotide always pairs with adenine? |
A) | cytosine | ||
B) | guanine | ||
C) | thymine | ||
D) | uracil
|
In the structure of DNA, which nucleotide always pairs with adenine? |
A) | cytosine | ||
B) | guanine | ||
C) | thymine | ||
D) | uracil
|