Imagine you have discovered a new species of bacteria To beg

Imagine you have discovered a new species of bacteria. To begin your investigation of this organism, you run an assay on the total nucleotide content of the bacterial DNA. If the cytosine content of DNA from the bacterial cells is 40%, what is the adenine content?

a. 10%

b. 20%

c. 40%

d. 60%

e. Impossible to tell

Solution

Answer: a. 10%

C= 40%

G=C therefore G=40%

Rest 20% is A and T

Therefore A=10%

Explanation;

the total amount of purines = total amount of pyrimidines

A/T or G/C=1, A=T, G=C