$A$ : 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
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
During transcription holoenzyme $RNA$ polymerase binds to a $DNA$ sequence and the $DNA$ assumes a saddle like structure at the point. What is that sequence called
In lac operon, the lac $mRNA$
$DNA$ is methylated at
The total number of nitrogenous bases in human genome is estimated to be about
Different types of chromosomes can be recognised by the position of the following separating the two arms