Beadle and Tatum observed that each type of mutant bread mold showed the absence of a specific type of enzyme. Their experiments demonstrated that:.......

  • A
    Specific enzymes are required for cells to function.
  • B
    Genes are made of $DNA$.
  • C
    Genes contain the information to make proteins.
  • D
    Enzymes are required for the repair of damaged $DNA$ information.

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Genetic code determines

Which of the following pairs of codons is correctly matched with their function or the specific amino acid they signal?

If in a test tube,$mRNA$ of $E. coli$ cells and $tRNAs$ from the body of rats are taken and a sufficient number of amino acids are added,then the polypeptide synthesized will be of the nature of

Provide a scientific reason why degenerate codons reduce the effect of mutations.

There are $64$ codons in the genetic code because....

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