The affected male in the pedigree chart is symbolised by

Which of the following diseases in humans belongs to the same category as hemophilia?

Give scientific reasons: The product of phenylalanine catabolism excreted in the urine in phenylketonuria.

Match Column-$I$ with Column-$II$ and select the correct option.

Column-$I$	Column-$II$
$(P)$ Haemophilia	$(i)$ Recessive gene: $X^{h}X^{h}$
$(Q)$ Colour blindness	$(ii)$ Recessive gene: $pp$
$(R)$ Phenylketonuria	$(iii)$ Recessive gene: $Hb^{s}Hb^{s}$
$(S)$ Sickle-cell anaemia	$(iv)$ Recessive gene: $X^{c}X^{c}$

In Cooley's Anemia,the affected chain of a haemoglobin is

Both male and female have normal vision though their fathers were colour blind,and mothers did not have any gene for colour blindness. The probability of their daughter becoming colour blind is (in $\%$)