Chromosome having centromere in its middle is
Acrocentric
Telocentric
Metacentric
Submetacentric
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 one statement regarding "Okazaki fragment'' is correct
A characteristic showing continuous variation is controlled by a
Select the two correct statements out of the four $(i -iv)$ statements given below about lac operon.
$(i)$ Glucose or galactose may bind with the repressor and inactivate it.
$(ii)$ In the absence of lactose the repressor binds with the operator region.
$(iii)$ The zgene codes for permease.
$(iv)$ This was elucidated by Francois Jacob and Jacques Monod.
The correct statements are
A $DNA$ strand is directly involved in the synthesis of following except