Male pattern baldness is a/an..... trait.

Select the correct option for the following statements:
$P - F_1$ generation shows traits of both parents.
$Q - F_1$ generation shows a new trait (intermediate).
$R - F_1$ generation shows only one of the two parental traits.
$\quad \quad P \quad Q \quad R$

For the expression of traits,genes provide only the potentiality and the environment provides the opportunity. Comment on the veracity of the statement.

$A$ : Test cross is the tool for knowing linkage between genes.
$R$ : Monohybrid test cross gives two phenotypes and two genotypes.

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

Milk secretion and beard growth,both the traits are