By the process of artificial selection in evolution, which of the following is developed using sterile flowers?

$A$ trait may be inherited, but may not be expressed. Justify this statement with the help of a suitable example.

Select the statements that describe characteristics of genes:
$(i)$ Genes are specific sequences of bases in a $DNA$ molecule.
$(ii)$ $A$ gene does not code for proteins.
$(iii)$ In individuals of a given species,a specific gene is located on a particular chromosome.
$(iv)$ Each chromosome has only one gene.

"Experiences of an individual during its lifetime cannot be passed on to its progeny and cannot direct evolution". Justify this statement giving an example.

Which of the following is the correct match between List-$I$ and List-$II$?

List-$I$	List-$II$
$1$. Acquired trait	$a$. Wings of a bird and wings of a butterfly
$2$. Evidence of evolution	$b$. Wings of a bird and forelimb of a lizard
$3$. Homologous organs	$c$. Docked tail of a mouse
$4$. Analogous organs	$d$. Fossils

In a pea plant,find the contrasting trait for the following:
$(a)$ The position of the flower is terminal.
$(b)$ The flower is white in colour.
$(c)$ The shape of the pod is constricted.