Which particular process was used by Meselson and Franklin in order to study the semi-conservative replication of DNA?

Q. Meselson and Stahl used ____________ as the medium for density gradient centrifugation.

Q. Replication was allowed to take place in the presence of radioactive deoxynucleotides precursors in E.coli that was a mutant for DNA ligase. Newly synthesised radioactive DNA was purified and strands were separated by denaturation. These were centrifuged using density gradient centrifugation. Which of the following would be a correct result?

Q. In density gradient centrifugation, satellite DNA forms ___________.

Q. Which of the following is generally used for creating density gradient during centrifugation?

Q. Matthew Meselson and Franklin Stahl grew E. coli(doubling time is $20$min) in medium containing ${}^{15}N{H}_{4}Cl$ for many generations. Then the E. coli was transferred to medium containing ${}^{14}N{H}_{4}Cl$. After $40$ minutes, the cells were harvested and DNA was extracted and subjected to cesium chloride density gradient centrifugation. The proportion of light and hybrid DNA densities will be.