Given below is a highly simplified representation of the human sex chromosomes from a karyotype. The gene $'a'$ and $'b'$ could be of
Colour blindness and body height
Attached ear lobe and rhesus blood group
Haemophilia and red-green colourblindness
Phenylketonuria and haemophilia
Which is correct for inheritance of autosome linked recessive gene?
Study the pedigree chart given below.
$[Image]$
What does it show?
Which of these is not a Mendelian disorder?
Genes for colour blindness is carried by
$I.$ Abnormal development
$II.$ Father
$III.$ Mother
$IV.$ Autosomes
A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind ?