Match the following - (w.r.t. Pedigree analysis)
Column $-I$ | Column $-II$ |
$a.$ Solid symbol | $(i)$ Carrier of sex linked trait |
$b.$ Horizontal line between symbols | $(ii)$ Offspring |
$c.$ Horizontal line above the symbols | $(iii)$ Trait to be studied |
$d.$ Dot in centre | $(iv)$ Parents |
$a(iv), b(iii), c(ii), d(i)$
$a(ii), b(iii), c(iv), d(i)$
$a(iii), b(iv), c(ii), d(i)$
$a(i), b(ii), c(iv), d(iii)$
Which is correct for inheritance of autosome linked recessive gene?
A woman with normal vision, but whose father was colour blind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. Thus boy
Give scientific reasons : The human male never passes on the gene for haemophilia to his son.
A colour blind man marries the daughter of a colour blind person. Then in their progeny