Final answer:
The eukaryotic analogs of RecA are Dmc1 and Rad51, which play critical roles in homologous recombination during meiosis and the repair of double-stranded breaks.
Step-by-step explanation:
The eukaryotic analogs of the RecA strand invasion protein are Dmc1 and Rad51. These proteins are essential for the process of homologous recombination, particularly during meiosis.
Rad51 is the direct homolog of RecA, playing a critical role in repairing double-stranded breaks through strand invasion at similar sequences, while Dmc1 is a meiosis-specific homolog that assists in synapsis and crossing over.
These proteins operate in concert with other recombination machinery, including the MRX/MRN complex, which binds at double-stranded breaks, and RPA, which binds to single-stranded DNA.