because the frequency of recombination between linked markers is only slightly changed in reca1 recipients , and because markers of heterologous origin in dna from intergenotic strains are not discriminated against strongly by reca1 recipients , it is concluded that neither a difference in length of synapsed dna nor a difference in specificity for nucleotide sequence homology accounts for reduced transformation in reca1 cells .
C0039062
synapsed
C0007634
cells