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NEET 2009
Exam
NEET
Year
2009
Subject
Zoology
Chapter
Molecular Basis of Inheritance

NEET 2009 · Zoology · Molecular Basis of Inheritance

Semiconservative replication of DNA was first demonstrated in

Semiconservative replication of DNA was first demonstrated in

Options

  1. ADrosophila melanogaster
  2. BEscherichia coti
  3. CStreptococcus pneumoniae
  4. DSalmonella typhimurium

Correct answer

B. Escherichia coti

Step-by-step solution

Semiconservative replication of DNA was first demonstrated in E. coli. According to the semiconservative mode proposed by Watson and Crick, each strand of the two double helices formed would have one old and one new strand. The semiconservative nature of DNA replication was proved by the experiment of Meselson and Stahl (1958).
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