The functional complex that consists of a cluster of genes including structural genes,a promoter gene,an operator gene,and a regulator gene was discovered by:

  • A
    Beadle and Tatum $(1958)$
  • B
    Watson and Crick $(1953)$
  • C
    Jacob and Monad $(1961)$
  • D
    Britten and Davidson $(1961)$

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Similar Questions

Write a short note on the lac operon.

The activity of the structural gene is controlled by:

In the $lac$ operon model,lactose molecules function as:

Match List-$I$ with List-$II$:
List-$I$List-$II$
$a$. In lac operon $i$ gene codes for$i$. Transacetylase
$b$. In lac operon $z$ gene codes for$ii$. Permease
$c$. In lac operon $y$ gene codes for$iii$. $\beta$-galactosidase
$d$. In lac operon $a$ gene codes for$iv$. Repressor

Choose the correct answer from the options given below:

An $E. coli$ cell with a mutated $z$ gene of the $lac$ operon cannot grow in a medium containing only lactose as the source of energy because:

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