Select the incorrect statement.

Question

Select the incorrect statement. (A) More than 900 restriction enzymes have been isolated from over 230 strains of bacteria. (B) In the year 1963, the two enzymes responsible for restricting the growth of bacteriophage in Escherichia coli were isolated. (C) Some key tools for recombinant DNA technology are restriction enzyme, polymerase enzyme, ligase, vectors and host root organisms. (D) EcoRI cut the DNA between bases A and T only when the sequence GAATTC is present in the DNA.

Tardigrade Admin · Accepted Answer

EcoRI identifies specific palindromic DNA sequence GAATTC and cuts are specific location away from center between G and A making staggered or sticky end cuts. It breaks phosphodiester bonds and hydrogen bonds.

Q. Select the incorrect statement.

More than 900 restriction enzymes have been isolated from over 230 strains of bacteria.

In the year 1963, the two enzymes responsible for restricting the growth of bacteriophage in Escherichia coli were isolated.

Some key tools for recombinant DNA technology are restriction enzyme, polymerase enzyme, ligase, vectors and host root organisms.

EcoRI cut the DNA between bases A and T only when the sequence GAATTC is present in the DNA.

EcoRI identifies specific palindromic DNA sequence GAATTC and cuts are specific location away from center between G and A making staggered or sticky end cuts. It breaks phosphodiester bonds and hydrogen bonds.