Give scientific reasons : The product of phenylalanine catabolism excreted in the urine in phenylketonuria.
It is a rare disease in which individual lacks an enzyme called Phenylalanine hydroxylase. Which is needed to breakdown an essential amino acid phenylalanine into tyrosine in liver. This phenylalanine is accumulated and gets converted into phenylpyruvic acid and other derivatives
leading to mental retardation (due to accumulation in brain). These are also excreted through urine because of its poor absorption by kidney.
What are all the chances of colour blind daughter and sons being born in a marriage of normal man marrying a normal woman, whose father was colour blind
The most striking example of point mutation is found in a disease called
Give scientific reasons : The Mendelian experiments cannot be carried out in human beings.
Which of the following is not true of haemophilia?
The daughter born to haemophilic father and normal mother could be