Question

if your dna is composed of 35 percent adenine, what percentage does cytosine account for?

Explanation:

Step1: Recall base - pairing rules

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

Step2: Calculate the amount of thymine

If A = 35%, then T = 35% since A = T.

Step3: Calculate the combined amount of A and T

A + T=35% + 35% = 70%.

Step4: Calculate the combined amount of C and G

The total amount of bases in DNA is 100%. So, C + G=100%-(A + T)=100% - 70% = 30%.

Step5: Calculate the amount of cytosine

Since C = G, C=(C + G)/2. So, C = 30%/2 = 15%.

Answer:

15 percent