AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following correctly describes the parts of a nucleotide found in DNA?
A
adenine + phosphate group + thymine
B
cytosine + phosphate group + guanine
C
deoxyribose + phosphate group + polymerase
D
deoxyribose + phosphate group + cytosine
Explanation: 

Detailed explanation-1: -Answer and Explanation: The correct answer is (d) All are components of a nucleotide. Nucleotides have three major components: a sugar, a phosphate, and a nitrogenous base. The 5-carbon sugar and phosphate groups link together with other nucleotides to form a sugar-phosphate backbone.

Detailed explanation-2: -DNA is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). The nucleotides attach to each other (A with T, and G with C) to form chemical bonds called base pairs, which connect the two DNA strands.

Detailed explanation-3: -C is correct. The three components of a nucleotide are a 5-carbon sugar, a phosphate group, and a nitrogenous base.

Detailed explanation-4: -A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

There is 1 question to complete.