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in Chemistry by (64.7k points)

A short length of DNA molecule contains 120 adenine and 120 cytosine bases. The total no. of nucleotides in this DNA segment is : 

(1) 120 

(2) 60 

(3) 240 

(4) 480

1 Answer

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Best answer

Correct option (4) 480

Explanation:

According to Chargaff’s rule, the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine in DNA molecule.

Hence 120 adenine = 120 thymine 

120 cytosine = 120 guanine 

Total = 480 nucleotides 

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