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22 June, 13:29

According to Chargaff's rules, which of the following are possible base compositions for doublestranded DNA.

A) %A=5 %G = 45 %C=45 %T=5 %U = 0

B) %A=20 %G=20 %C=20 %T=20 %U=20

C) %A=35 %G = 15 %C=35 %T=15 %U = 0

D) All of the above

E) None of the above

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Answers (1)
  1. 22 June, 15:57
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    A) %A=5 %G = 45 %C=45 %T=5 %U = 0.

    Explanation:

    DNA is the genetic material and transfer from one generation to the generation. The DNA composed of the nitrogenous bases, pentose sugar and the phosphate group.

    The base pairing of DNA follows the Chargaff's rule. According to this, the purines an pyrimidine ratio is equal to 1. The number of adenine is equal with that of thymine and number of cytosine is equal to the guanosine. In option (A) this criteria is follows.

    Thus, the correct answer is option (A).
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