DNA ligase closes nicks between ____ by forming ____ bonds.
A) nitrogenous bases; hydrogen
B) RNA fragments; noncovalent
C) DNA and RNA fragments; covalent
D) DNA fragments; peptide
E) DNA fragments; covalent

Question

Quizplus · Accepted Answer

DNA ligase is an enzyme that repairs irregularities or breaks in the backbone of double-stranded DNA molecules. It works by catalyzing the formation of covalent phosphodiester bonds between the 3' hydroxyl end of one nucleotide and the 5' phosphate end of another. This action effectively "seals" nicks or breaks, ensuring the continuity of the DNA molecule.

DNA Ligase Closes Nicks Between ____ by Forming ____ Bonds

DNA Ligase Closes Nicks Between by Forming Bonds