Select the correct match.

Options

A. `{:((a) , "Matthew Meselson and" , : , "Pisum sativum F. Stahl"):}`
B. `{: ((b) , "Alfred Hershey and" , : , TMV "Martha Chase"):}`
C. `{:((c) , "Alec Jeffreys" , : , "Streptococus pneumoniae"):}`
D. `{:((d) , "Francois Jacob and Jacques Monod" , : , "Lac operon"):}`

Answer

D

Explanation

Jacob and Monod (1916) discovered the lac operon . An operon is a part of genetic material or DNA which acts as a single regulated unit . It 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 `T_(2)` Bacteiriophage 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.