A model that relates repetitive $DNA$ sequences and their transcripts of regulation in eukaryotes was proposed by
Jacob and Monad
Britton and Davidson
Nilsson Ehle
H.J. Muller
$A$ : Nutritional mutant strain of pink mould is auxotroph.
$R$ : It is not able to prepare its own metabolites from the raw materials obtained from outside
Which of the following is the simplest amino acid
Percentage of $( G + C )$ is
Nucleotide arrangement in $DNA$ can be seen by