Assertion: Polytene chromosomes have a high amount of $DNA$.
Reason: Polytene chromosomes are formed by repeated replication.
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
If the Assertion is correct but Reason is incorrect.
If both the Assertion and Reason are incorrect.
Haploid content of human $DNA$ contains
Which type of $RNA$ is most abundant in cell
A discrete multiprotein structure on the chromosome which contains enzymes for $DNA$ duplication is called as
In man, sperms contain autosomes and
The total number of nitrogenous bases in human genome is estimated to be about