The 5' end of a DNA molecule can be chemically distinguished from the 3' end because there is a(n)________ group at the 5' end and a(n)________ group at the 3' end.
A)amine; carboxyl
B)phosphate; sulfate
C)hydroxyl; hydrogen
D)phosphate; hydroxyl
E)amine; hydroxyl

Question

Quizplus · Accepted Answer

The 5' end of a DNA molecule has a phosphate group attached to it, while the 3' end has a hydroxyl group. This distinction is fundamental to the structure and function of DNA.

The 5' End of a DNA Molecule Can Be Chemically