Test: Biochemistry

1.

Which of the following statements about restriction enzymes is true?

Restriction enzymes are endonucleases which recognize a restriction site and cut DNA within or around this site

Restriction enzymes can only cut bacterial DNA

Restriction enzymes act at RNA mutation sites, to create a covalent bond which links two adjacent exons after an intron sequence is excised

None of these answers is true

Reverse transcriptase is a DNA polymerase which creates new strands from 3’ to 5’

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