Question

In the model of DNA, the colored pegs represent the four nitrogen bases found in every DNA molecule. One possible correct labeling suggestion could be

A) yellow - adenine; green - thymine; orange - guanine; blue - cytosine

B) yellow - adenine; green - guanine; orange - thymine; blue - cytosine.

C) yellow - adenine; green - cytosine; orange - thymine; blue - guanine.

D) yellow - cytosine; green - thymine; orange - adenine; blue - guanine

Answer 1

The answer is D. This is because of the nitrogen compounds that are in it. 

Answer 2

In the DNA, the colored pegs are the one that represents the four nitrogen bases namely; adenine, guanine, thymine and cytosine. They are found in each DNA molecule and the correct labellings are: yellow - adenine, green - guanine, orange - thymine, blue - cytosine.
So the correct answer in the following options is letter B.