( 2 ) when conditions were created to obtain partially labeled chromosomes with no replication points : ( a ) the majority of dna molecules appeared at an intermediate density between the hybrid and the light densities , ( b ) the labeled and unlabeled markers appeared in the intermediate peak with approximately the same ratio as in the dna preparations , ( c ) the labeled markers were found in the intermediate peak except where dichotomous replication had occurred , ( d ) after shearing , the labeled markers appeared at the hybrid density and the unlabeled markers appeared at the light density .
C0012854
dna
C0598312
replication