Question

Match the enzyme in column I with its function in column II.

Answer 1

• DNA ligase enzyme joins two DNA fragments together via phosphodiester bond between 3’ hydroxyl at the end of one fragment and a 5’ phosphate at the end of another fragment.
• $\beta$-galactosidase enzyme hydrolyzes lactose into glucose and galactose.
• $\beta$-galactoside permease transports lactose into the cell for modification of toxic galactosides to facilitate their removal from the cell.
• Ribozymes are the RNAs with catalytic activity. They catalyze protein synthesis by serving as a structural part of the large ribosomal subunit.

Thus, the correct answer is option B.