Dideoxyribonucleotides (ddNTPs) used for DNA sequencing lack oxygen atoms at ________.
A) the 1' carbon of the pentose sugar
B) the 1' and 2' carbons of the pentose sugar
C) the 2' and 3' carbons of the pentose sugar
D) the 3' and 5' carbons of the pentose sugar
E) the 5' carbon of the pentose sugar

Question

Quizplus · Accepted Answer

Dideoxyribonucleotides (ddNTPs) lack oxygen atoms at the 2' and 3' carbons of the pentose sugar. This lack of oxygen atoms prevents further extension of the DNA chain after the ddNTP has been incorporated, allowing for the sequencing of the DNA template.

Dideoxyribonucleotides (DdNTPs) Used for DNA Sequencing Lack Oxygen Atoms at ________