Which site of a $t-RNA$ molecule hydrogen bonds to a $m-RNA$ molecule
Codon
Anticodon
$5$' end of the $t-RNA$ molecule
$3$' end of the $t-RNA$ molecule
Repetitive sequences are stretches of $DNA$ with repeated bases many times in a genome, but
$(a)$ These sequences are of no transcriptional function
$(b)$ These are associated with euchromatin region
$(c)$ These helps to identify a person on the basis of its $DNA$ specificity
Assertion: An organism with lethal mutation may not even develop beyond the zygote.
Reason: All types of gene mutations are lethal.
The genes, which are confined to differential region of $Y$ chromosome only, are called
The total number of nitrogenous bases in human genome is estimated to be about
The structure present over chromosome is