Question

Enzyme responsible for joining Okazaki fragments

		DNA ligase
		primase
		snRNP
		DNA gyrase
		endonuclease

Answer 1

Answer :- Enzyme responsible for joining Okazaki fragments = DNA ligase.

Explanation :-

DNA ligase :- Joins two Okazaki fragments together via phosphodiester bond between 3' hydroxyl at the end of one fragment and a 5' phosphate at the end of another fragment.

Primase :- Synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis.

snRNP :- function as core components of the spliceosome, the molecular machinery for pre-mRNA splicing.

DNA gyrase :- Reduces supercoiling during DNA unwinding & prevents DNA breakage.

Endonuclease :- Cleave the phosphodiester bond within a polynucleotide chain. Cut the DNA either at specific sites or more randomly.