Choose the correct answers from the alternatives given.
What is the function of DNA ligase in recombinant technology?

Cut DNA into many fragments

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Carry DNA into a new cell

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Link together newly joined fragments of DNA

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Separate fragments of DNA by their length and electrical charges

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Solution

The correct option is C Link together newly joined fragments of DNA
DNA ligase joins the DNA strands together by catalyzing the formation of a phosphodiester bond between the 5' phosphate of one strand and 3'hydroxyl of one strand. They can join both DNA (DNA ligase) and RNA (an RNA ligase). It plays a role in repairing single-strands breaks in duplex DNA in a living organism but some forms may specifically repair double-strand breaks.
So, the correct option is 'Link together newly joined fragments of DNA'.

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Similar questions

DNA ligases are the paste enzymes which help in joining the broken DNA fragments.

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