Match the following genes of the Lac operon with their respective products.
$(a)\; i$ gene | $(i)\; \beta-$galactosidase |
$(b)\; z$ gene | $(ii)$ Permease |
$(c)\; a$ gene | $(iii)$ Repressor |
$(d)\; y$ gene | $(iv)$ Transacetylase |
Select the correct option.
$(a)\quad (b)\quad (c)\quad (d)$
Which of the following structures are present in core particle of nucleosome?
In eukaryotes, the $RNA$ polymerase that synthesises $tRNA$ is $RNA$ polymerase ______ and is also responsible for formation of ______ $rRNA$.
Which $RNA$ is having least age
A normal metaphase chromosome with a midial centromere is