4.2 The DNA Structure

Question 1

nucleotides

Answer 1

molecules that are linked together into long chains, to make up a DNA molecule

Question 2

base

Answer 2

one of the components of DNA; there are four bases A,C,G and T, and their sequence determines the proteins that are made in a cell

Question 3

complementary base pairing

Answer 3

the way in which the bases of the two strands of DNA pair up: A always pairs with T, and C with G