Question

in which proposed model of dna replication would two new double-stranded dna molecules each contain segments of parental and daughter dna interspersed in both strands?

Answer 1

The dispersive model of DNA replication suggests that the new DNA molecules have interspersed segments of both parental and newly synthesized DNA in both strands.

Step-by-step explanation:

In dispersive replication, both copies of DNA would contain double-stranded segments of both parental DNA and newly synthesized DNA interspersed throughout. Unlike the conservative model where the parental DNA is conserved in one molecule and the daughter DNA is newly synthesized in another, or the semi-conservative model where each parental strand acts as a template resulting in double-stranded DNA that retains one parental and one new strand, the dispersive model suggests interspersion of old and new DNA within both strands of each replicated DNA molecule. Meselson and Stahl's experiment ultimately supported the semi-conservative model of DNA replication, which is now widely accepted.