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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

Respuesta :

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

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