Which of the Following Best Describes the Function of the RecA

Question

Which of the following best describes the function of the RecA protein in E. coli recombination?
A) Promotes strand invasion and formation of the D loop
B) Recognizes double-stranded breaks in the DNA
C) Is involved in the initial formation of the Holliday junctions
D) Resolves Holliday junctions into separate chromosomes

Accepted Answer

The RecA protein promotes strand invasion and formation of the D loop in E. coli recombination by binding to single-stranded DNA and facilitating its invasion into a homologous double-stranded DNA molecule. This leads to the formation of a D loop, which can then be resolved to form a Holliday junction.