Question

Briefly explain molecular scissors with example.​

Answer 1

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Restriction endonucleases are called molecular scissors as they cut the DNA segments at particular locations. Example: EcoRI.

Restriction enzymes cut the DNA strands some distance away from the centre of the palindromic sites, but between the same two bases on the opposite strands. This leaves single stranded portions with overhanging stretches called sticky ends on each strand as they form hydrogen bonds with their complementary cut counterparts. This stickiness at the ends of DNA fragments facilitates the action of enzyme DNA ligase.

Answer 2

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Restriction enzymes are also called 'molecular scissors' as they cleave DNA at or near specific recognition sequences known as restriction sites. These enzymes make one incision on each of the two strands of DNA and are also called restriction endonucleases.

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Hope it helps. Mark brainliest ✌️