A key part of DNA's function is to encode information.In considering how information-rich a particular molecule might be,a question is how many different sequences are possible in a particular length of the molecule.In the case of DNA the four different nucleotides can be arranged in any order.How many different sequences are possible for a DNA strand three nucleotides long?

Question

Quizplus · Accepted Answer

For each position, there are four possible nucleotides that can be placed, so the total number of possible sequences is 4x4x4 = 64. Therefore, the correct answer is D) 64.

A Key Part of DNA's Function Is to Encode Information