Which of the following point mutations involve changes to only one chain of the

Question

Which of the following point mutations involve changes to only one chain of the DNA double helix? insertion inversion balanced translocation deletion Consider site-directed mutagenesis. Which of the following statements is true about it? Site-directed mutagenesis is a mutation that shifts large sections of a chromosome changing the way that genes are expressed. Site-directed mutagenesis uses recombinant DNA techniques. Site-directed mutagenesis is used to study the role of a specific amino acid in a protein by substituting it with a different amino acid. Site-directed mutagenesis introduces a foreign DNA into a functioning cell. Site-directed mutagenesis makes use of DNA ligase to break down the DNA to isolate the desired gene.

Explanation / Answer

Q12. Answer :

Options : Insertion : The insertion involves the insertion or addition of nucleotides in the coding strand of the DNA

Deletion : The deletion involves the removal of few nucleotides form the coding strand

Balanced translocation : In balanced translocation there is replacemnt of few nucleotides in the coding strand of the DNA with in the chromosome.

Q13. Answer : The follwoing statements are true about it

Site Directed mutagenesis : is a mutation that shifts large sections of a chromosome changing the way that genes are expressed.

Site directed mutagenesis uses recombinant DNA techniques

Ans 13 option

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