Tjio and Levan's contribution is very significant because they

In humans,the presence of a beard and mustache in males is an example of a:

Match the List-$I$ with List-$II$:

List-$I$	List-$II$
$A$. $\text{ABO}$ blood group	$i$. Same phenotypic and genotypic ratio
$B$. Human skin colour	$ii$. Pleiotropy
$C$. Phenylketonuria	$iii$. Multiple allele
$D$. Incomplete dominance	$iv$. Polygenic inheritance

Match the following (Column-$I$ with Column-$II$):

Column-$I$	Column-$II$
$(P)$ $(2n-1)$	$(i)$ Produces normal female
$(Q)$ $Hb^s Hb^s$	$(ii)$ Produces haploid male
$(R)$ $22AA+XX$	$(iii)$ Causes Turner syndrome
$(S)$ $(X+O)$	$(iv)$ Causes sickle cell anemia
	$(v)$ Causes hemophilia
	$(vi)$ Shows Klinefelter syndrome

Choose the correct sequence of True $(T)$ and False $(F)$ statements:
$(i)$ Queen Elizabeth shows a number of haemophilic descendants.
$(ii)$ Variation in blood group prevalences is due to incomplete dominance.
$(iii)$ Drosophila has three pairs of autosomal chromosomes.
$(iv)$ In birds,the female is heterozygous.

Match the following and choose the correct option:

Column-$I$	Column-$II$
$(p)$ Mendel	$(i)$ Chromosomal theory of Inheritance
$(q)$ Morgan	$(ii)$ Recombination map
$(r)$ Alfred Sturtevant	$(iii)$ Linkage
$(s)$ Sutton	$(iv)$ Law of Segregation