Question

In a bacterium, the amount of adenine was found to be $18$ percent. Suggest the cytosine base composition from the following

• A. 0.64
• B. 0.36
• C. 0.32
• D. 0.18

Answer 1

Answer: (C)

0.32

Answer 2

According to Chargaff's rule, $( A + T )+( G + C )=100 \%$ $( A = T )+( G = C )=100 \%$ $(18 \%+18 \%)+2 G =100 \%$ $36 \%+2 G =100 \%$ $2 G =100 \%-36 \%$ $G =32 \%$