Which nitrogenous base does the dideoxynucleotide ddNTP contain?
A) Adenine
B) Thymine
C) Cytosine
D) Guanine
E) A, T, G or C

Question

Which nitrogenous base does the dideoxynucleotide ddNTP contain?
A) Adenine
B) Thymine
C) Cytosine
D) Guanine
E) A, T, G or C

Quizplus · Accepted Answer

Dideoxynucleotides (ddNTPs) do not contain a hydroxyl group (-OH) on their 3' carbon, making them unable to form a phosphodiester bond with another nucleotide. This property makes them useful for DNA sequencing by terminating DNA synthesis. Therefore, ddNTPs can be labeled with any of the four nitrogenous bases- A, T, G, or C.

Which Nitrogenous Base Does the Dideoxynucleotide DdNTP Contain