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प्रश्न
Give an example of a human disorder that is caused due to a single gene mutation.
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उत्तर
Sickle-cell anaemia is a human genetic disorder caused by a single gene mutation. In sickle-cell anaemia, glutamic acid (Glu) at the 6th position of beta globin chain (of haemoglobin molecule) is replaced by valine (Val).
संबंधित प्रश्न
Give any 'two' names of X-linked diseases
Why are thalassemia and haemophilia categorized as Mendelian disorders? Write the symptoms of these diseases. Explain their pattern of inheritance in humans.
In which of the following disorders number of chromosomes present is 47?
(A) Turner’s syndrome
(B) Cushing’s syndrome
(C) Acquired Immuno - Deficiency Syndrome
(D) Down’s syndrome
Give the importance of heterocyst in cyanobateria.
Mention the symptoms of Phenylketonuria.
Choose the correct option which appropriately classifies the following disorders into Mendelian and chromosomal disorders:
Colour blindness, Down syndrome, Sickle cell anaemia, Turner syndrome, Thalassemia, Haemophilia, Phenylketonuria, Klinefelter syndrome.
Mental retardation in man associated with sex chromosomal abnormality is usually due to ______.
Which of the following is called as Royal disease?
Clotting of blood is to ______.
What is the genotype of Turner's Syndrome?
