Which amino acids are present in histones?
Lysine and histidine
Valine and histidine
Arginine and lysine
Arginine and histidine
Crossing over takes place between
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.
$(a)\quad (b)\quad (c)\quad (d)$
Chromosomes can be stained with
Two sister chromatids are attatched with