Select the correct option :-

	I		II
(a)	Synapis aligns homologous chromosomes	(i)	Anaphase-II
(b)	Synthesis of RNA and protein	(ii)	Zygotene
(c)	Action of enzyme  recombinase	(iii)	G2-phase
(d)	Centromeres do not separate but chromatids move towards opposite  poles	(iv)	Anaphase-I
		(v)	Pachytene

Nuclear envelope is a derivative of :-

What causes a green plant exposed to the light on
only one side, to bend toward the source of light as
it grows ?

Which of the following does not favour the formation
of large quantities of dilute urine ?

Gene regulation governing lactose operon of E.coli
that involves the lac I gene product is :

DNA is not present in :-