Question

question 26 of 30 you have determined that the total guanine content in a sample of dna is 40%. what is the total nucleotide content for the remaining nucleotides in the same sample of dna? to indicate your answer, select a percentage from the answer bank that corresponds to the total nucleotide content for adenine, thymidine, and cytosine. choices from the answer bank may be used once, more than once, or not at all. answer bank 30% 20% 40% 60% 10% a t c

Explanation:

Step1: Recall base - pairing rules

In DNA, guanine (G) pairs with cytosine (C), and adenine (A) pairs with thymine (T). So, the amount of G = C and the amount of A = T.

Step2: Determine the amount of cytosine

Given that G = 40%, then C = 40% because G and C are complementary.

Step3: Calculate the combined amount of A and T

The total amount of nucleotides is 100%. The combined amount of G and C is 40%+40% = 80%. So the combined amount of A and T is 100% - 80%=20%. Since A = T, then A = 10% and T = 10%.

Answer:

A. 10%
T. 10%
C. 40%