match the following :
A. single upper band of DNA
b. intermediate band of DNA
c. single upper band of DNA
d. two bands of DNA (upper and lower)
Watson and Crick, the discoverers of DNA structure, proposed a semiconservative model of replication. Meselson and Stahl carried out experiments to test this by labeling DNA with isotopes of nitrogen, 14N and 15N Labeled DNA were isolated from bacteria and centrifuged. Match the experimental condition with the result observed in the centrifuge tube. DNA isolated from e. coli grown in 15N medium I Choose ] DNA isolated from e. coli grown in 1AN IChoose ] medium DNA isolated from e. coli grown first Cho in 15N medium then transferred to 14N Chooe medium for one generation
