New DNA molecules can be synthesized in a test tube containing _______ as substrate.
A) deoxyribose nucleoside monophosphates
B) deoxyribose nucleoside diphosphates
C) deoxyribose nucleoside triphosphates
D) deoxyribose nucleotide diphosphates
E) deoxyribose nucleotide triphosphates

Question

Quizplus · Accepted Answer

DNA molecules are formed by the polymerization of nucleotides. In the test tube, deoxyribose nucleoside triphosphates serve as the substrate for DNA synthesis. These molecules are used as the building blocks to form the new DNA strand. The diphosphate or monophosphate forms of nucleotides are not sufficient to synthesize a new DNA strand.

New DNA Molecules Can Be Synthesized in a Test Tube