Assertion: An organism with lethal mutation may not even develop beyond the zygote.
Reason: All types of gene mutations are lethal.
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.
$DNA$ is methylated at
A normal metaphase chromosome with a midial centromere is
Few genes are found in all types cells of differentiated multicellular organisms of high class. It is called
Satellite $RNAs$ are present in some