AP BIOLOGY

CELL DIVISION

THE CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is DNA composed of?
A
Sugars, salts, and hydrogen bonds
B
Phosphate, a pentose sugar, and a nitrogenous base
C
A nitrogenous base, hexose sugar, and polyphosphate
D
A phosphate sugar, Ribonucleic acid, and hydrogen
Explanation: 

Detailed explanation-1: -A nucleotide is the basic structural unit and building block for DNA. A nucleotide has 3 components-a nitrogenous base, pentose sugar and a phosphate group.

Detailed explanation-2: -A nucleotide consists of a pentose sugar molecule, a nitrogenous base, and a phosphate group.

Detailed explanation-3: -Each nucleotide, in turn, is made up of a nitrogenous base, a pentose sugar, and a phosphate.

There is 1 question to complete.