If there is 24% adenine present in a dna helix how much thymine would be present

24 % Thymine (T)

Explanation:

Chargaff's rules indicate that in double-stranded DNA, the proportion of Adenine (A) is equal to the proportion of Thymine (T), while the proportion of Guanine (A) is equal to the proportion of Cytosine (C). Since double-stranded DNA has 24% A, it means there will be 24% T.

Moreover, in this case, the A + T content in the double-stranded DNA is 24 + 24 = 48%, while the G + C  content is 48 - 100 = 52%, i.e. G = 26% and C = 26% (26 + 26 = 52).

yes? sounds right, but you didn’t ask a question.