Choose correct option.
$(i)$ The heterozygous female transmit the disease to son.
$(ii)$ Change in the shape of the $RBC$ from biconcave disc to elongated sickle like structure.
$(iii)$ Mentally retarded.
$(iv)$ Heamoglobin not formed proper amount in blood.
Colour blindness, thalassaemia, pheny ketonuria, anaemia.
Haemophilia, sickle cell anaemia,Klinefelter's syndrome, thalassemia.
Down's syndrome, klinefelter's syndrome,colour blindness, turner's syndrome. .
Haemophilia, sickle cell anaemia,phenyl ketonuria, thalassaemia.
A normalvisioned man whose father was colour blind, marries a woman whose father was also colourblind. They have their first child as a daughter. What are the chances that this child would be colour blind ?
Give scientific reasons : The Mendelian experiments cannot be carried out in human beings.
Given below is a highly simplified representation of the human sex chromosomes from a karyotype.
The genes $a$ and $b$ could be of
The most striking example of point mutation is found in a disease called