In a growing DNA strand, to which carbon of the deoxyribose is each monomer added?
A) 1ʹ
B) 2ʹ
C) 3ʹ
D) 4ʹ
E) 5ʹ

Question

Quizplus · Accepted Answer

The monomers of DNA, nucleotides, are added to the 3ʹ carbon of the deoxyribose sugar in the growing DNA strand, forming a phosphodiester bond between the 3ʹ hydroxyl group and the phosphate group of the incoming nucleotide. The 5ʹ carbon of the deoxyribose is already bonded to the phosphate group of the previous nucleotide, forming the backbone of the DNA strand.

In a Growing DNA Strand, to Which Carbon of the Deoxyribose