InterviewSolution
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InterviewSolution
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Select the correct match :(1) Alec Jeffreys – Streptococcus pneumoniae(2) Alfred Hershey and Martha Chase – TMV(3) Matthew Meselson and F. Stahl– Pisum sativum (4) Francois Jacob and Jacques Monod – Lac operon |
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Answer» Correct Option(4) Francois Jacob and Jacques Monod – Lac operon Explanation: Jacob and Monod (1916) discovered the lac operon. An operon is a part of the genetic material or DNA which acts as a single regulated unit. lt possesses one or more structural genes, an operator gene, a promoter gene, a regulator gene, a repressor gene, and an inducer or corepressor. Matthew Meselson and F Stahl discovered the semi-conservative mode of DNA replication in E. coli. Alfred Hershey and Martha Chase use T2 Bacteriophage in their experiments to infect E. coli and proved that DNA is the genetic material. Alec Jeffreys (1984) invented the DNA fingerprinting technique. This technique determines nucleotide sequences of certain areas of DNA which are unique to each individual. |
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