How many possible trinucleotides are there that contain at least one of the following bases: adenine (A),cytosine (C),guanine (G)?

Question

Quizplus · Accepted Answer

A trinucleotide is a sequence of three nucleotides. Since we are considering sequences that must contain at least one of A, C, or G, we can calculate the total number of possible trinucleotides by considering all possible combinations of the four nucleotide bases (A, C, G, T) and then subtracting the combinations that do not meet our criteria. There are 4^3 = 64 possible trinucleotides if we consider all combinations of A, C, G, and T. The only combination that does not contain A, C, or G is TTT, which is just one possibility. Therefore, the number of trinucleotides containing at least one of A, C, or G is 64 - 1 = 63, which is more than 10.

How Many Possible Trinucleotides Are There That Contain at Least