biologists proposed 3 alternative hypothesis about dna replication. which of the three alternative hypothesis has been determined to settle the question about replication and by whom?

Question

Biology

Calhoun

11 July, 09:40

biologists proposed 3 alternative hypothesis about dna replication. which of the three alternative hypothesis has been determined to settle the question about replication and by whom?

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Answers (1)

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Shane Wright · Answer 1

The hypothesis of semi-conservative mode of replication has been settled about replication by Watson and Crick.

Explanation:

Earlier for DNA replication, three hypothesis was made those were conservative mode of replication, Semi-conservative mode of the replication and dispersive mode of replication.

Meselson and Stahl used heavy nitrogen isotope in bacterial culture to see the presence of the isoptopes. In their experiment, they found those labelled with 15N had 15 N in their replicated cells and those with 14 N retain the same. With this, the hypothesis of semiconservative mode of replication given by Watson andCrick was accepted. It states that a DNA strand unwinds to form template for the daughter DNA to be formed hence genetic information remain conserved. Each strand synthesized will have one parent strand and the other will be daughter strand.