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Question
The term 'molecular scissors' generally refers to
The term 'molecular scissors' generally refers to
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Solution
The correct option is C restriction endonucleases
Restriction endonucleases cut DNA segments at specific sites of 4 or 6 base pair length, called the restriction sites and are therefore known as the molecular scissors. DNA polymerase helps in the synthesis of DNA and RNA polymerase catalyses the synthesis of RNA. DNA ligases on the other hand help in joining DNA fragments by helping in the formation of phosphodiester bonds between them. So, the correct option is 'restriction endonucleases'.
Restriction endonucleases cut DNA segments at specific sites of 4 or 6 base pair length, called the restriction sites and are therefore known as the molecular scissors. DNA polymerase helps in the synthesis of DNA and RNA polymerase catalyses the synthesis of RNA. DNA ligases on the other hand help in joining DNA fragments by helping in the formation of phosphodiester bonds between them. So, the correct option is 'restriction endonucleases'.
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