From the list given below,select the character which can be acquired but not inherited.

An organism which is a worm,has very simple 'eyes',that are really eye spots which detect light. Name that organism.

All human races,such as Africans,Asians,Europeans,Americans,and others,might have evolved from a common ancestor. Provide a few pieces of evidence in support of this view.

In the following crosses,write the characteristics of the progeny:

Cross	Progeny
$(a)$ $RR YY \times RR YY$ (Round,yellow $\times$ Round,yellow)	..........
$(b)$ $Rr Yy \times Rr Yy$ (Round,yellow $\times$ Round,yellow)	..........
$(c)$ $rr yy \times rr yy$ (Wrinkled,green $\times$ Wrinkled,green)	..........
$(d)$ $RR YY \times rr yy$ (Round,yellow $\times$ Wrinkled,green)	..........

How are gametes formed in sexually reproducing organisms?

How can we say that a change in genes can bring about a change in $DNA$?