Give two reasons why the structure of DNA proposed by Watson and Crick supports DNA as the genetic material.

Answer 1

1. There are 4 different types of bases that a DNA nucleotide can have (A, T, G, or C) which are ordered in a specific sequence in the DNA strand. The sequence of these bases can encode for certain amino acids that will go on to form a protein.
2. The two DNA strands are complementary to one another (complementary base pairing), so each strand can serve as a template to create a new complementary DNA strand. This is needed to replicate and pass on the DNA during cell division.