A ddNTP,used often in DNA sequencing,lacks a(n)________ at the ________ and ________ carbons.
A)OH; 2'; 3'
B)methyl; 2'; 3'
C)carboxyl; 5'; 3'
D)OH; 2'; 5'
E)None of the listed answers is correct.

Question

Quizplus · Accepted Answer

A ddNTP (dideoxynucleoside triphosphate) lacks a hydroxyl group (-OH) at the 2' and 3' carbons of the sugar molecule, which prevents further nucleotide addition to the growing DNA strand during sequencing. This is different from a regular dNTP (deoxynucleoside triphosphate) that has the hydroxyl group at the 3' carbon, allowing for further nucleotide addition.

A DdNTP,used Often in DNA Sequencing,lacks A(n)________ at the ________

A DdNTP,used Often in DNA Sequencing,lacks A(n) at the