Question

Chapter 10 Multiple-Choice Question 6 Part A Which of the following researchers provided evidence for semiconservative replication in prokaryotes? Komberg Okazaki Taylor, Woods and Hughes Meselson and Stahl Delucia and Caims Submit Request Answer Provide Feedback

Answer 1

Ans). Meselson and Stahl is the correct answer.

Explaination:

Watson and Crick proposed a hypothesis that DNA replication was semiconservative, and it was supported by the Meselson–Stahl experiment which was conducted by Meselson and Franklin Stahl (1958) in E.coli (Prokaryotes). When a double stranded DNA molecule unwind, each strand is used as a template for the synthesis of a new strand. This results in formation of two identical copies which are similar to original strands.

Explaination for other options:

Kornberg

Arthur Kornberg in 1956, discovered DNA polymerase I it is an enzyme that participates in the process of prokaryotic DNA replication.

Okazaki

Okazaki's experiments concluded that DNA replication is a discontinuous mechanism. Because Okazaki fragments are short sequences of DNA nucleotides which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication proess.

Taylor, Woods, and Hughes

Taylor, Woods, and Hughes experiments discovered that DNA replication is semiconservative in Eukaryotes.

DeLucia and Cairns

DeLucia and Cairns isolated an E. coli mutant, polA, from this strain, DNA-polymerizing enzyme called pol II was isolated.

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