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DNA Structure and Replication - Medical Science

Q1:

If one cell has AT contents 40%, what will be the percentage of Guanine residue?

A 60%

B 15%

C 30%

D Guanine residue can not be calculated

ANS:C - 30%

A and T = 40 means 20 for each.
100 - 40 = 60 GC content i.e. 30 for each.