Final answer:
The eukaryotic analogs of RecA in DNA repair and homologous recombination are Rad51 and DMC1, which are essential for strand invasion and genetic integrity.
Step-by-step explanation:
The eukaryotic analogs of the bacterial RecA strand invasion protein are primarily the Rad51 and DMC1 proteins. In eukaryotic cells, Rad51 plays a crucial role in homologous recombination, a process that is essential for DNA repair and chromosome segregation during meiosis.
Like RecA, Rad51 binds to single-stranded DNA to form a nucleoprotein filament and initiate strand invasion at homologous sequences, allowing for the exchange of genetic information or the repair of DNA damage. DMC1, on the other hand, is a meiosis-specific homolog of Rad51 that also promotes homologous pairing and strand exchange. These proteins are vital in maintaining the integrity of genetic information through the processes of homologous recombination and crossing over in eukaryotes.