Advertisements
Advertisements
Question
Give an example of a human disorder that is caused due to a single gene mutation.
Advertisements
Solution
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).
RELATED QUESTIONS
What will be the phenotype of progeny, if a carrier haemophilic female marries a normal male?
A colour-blind child is born to a normal couple. Work out a cross to show how it is possible. Mention the sex of this child.
Give an example of an autosomal recessive trait in humans. Explain its pattern of inheritance with the help of a cross.
Name the disorder caused by under secretion of thyroxine in children
Which of the following traits is never observed in a human female?
In human beings 45 chromosomes/single X/XO abnormality causes ______.
Identify the characteristics that are observed in an individual suffering from Klinefelter syndrome.
i. Gynaecomastia, under developed testis and no spermatogenesis.
ii. Voice pitch is harsh.
iii. They are tall with long arms.
Females with Turner’s syndrome have ______.
Give definition of non-disjunction.
What is the genotype of Turner's Syndrome?
