Question

Punnet square of a marriage between carrier woman and a colour blind. Is there a possibly of the birth colour blind daughter.
Draw it

Answer 1

Hey Friend,

Colour blind man - XcY
Career woman - XcX

Here, The gene of colour blindness is shown by 'c'

Punnet square -

          Xc              Y
      --------------------------
     |                                |
Xc |    XcXc       XcY      |
     |-------------------------- |
     |                                |
X   |   XcX           XY      |        


From the above punnet square, we can infer the following things -

1. XcXc ---> Colour blind daughters
2. XcX ---> Career daughters (normal vision) 
3. XY ---> Normal Sons

Hope it helps!