Question

analyzing dna structure

1. chargaffs experiments in dna analysis were

consistent in which respect no matter what organism
was studied?
a. the percentages of adenine (a) and thymine
(t) were always equal.

b. the percentages of guanine (g) and thymine
(t) were always equal.

c. the percentages of adenine (a) and guanine
(g) were always equal.

d. the percentages of thymine (t) and cytosine

Explanation:

Chargaff's rules state that in DNA, the amount of adenine (A) equals thymine (T), and guanine (G) equals cytosine (C) across all organisms. This base pairing consistency is a core finding of his experiments.

Answer:

A. The percentages of adenine (A) and thymine (T) were always equal.