Which of the following is not true about RecA a exchanges da

Which of the following is not true about RecA?

a. exchanges damaged DNA with a new DNA strand

b. binds ssDNA

c. creates a new template strand at single-strand gaps

d. stimulates cleavage of the LexA repressor

Solution

a. It helps in exchanges damaged DNA with a newly synthesized DNA strand.

b. Nucleoprotein filament synthesis occurs because RecA protein binds with the ssDNA. This nucleoprotein has capability to bind with DNA binding site because of that the single and double get together.

c. DNA polymerase helps in the synthesis of New DNA strand in between the DNA gap.

d. RecA has co-protease function to repair the DNA damage. In case of SOS response, it automatically cleaves the LexA repressor to repair the DNA.

Option is C is correct. Beacuse template synthesize using the DNA polymerase enzyme.