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प्रश्न
Very Short Answer Question.
Give an example of a chromosomal disorder caused due to nondisjunction of autosomes.
उत्तर
Down syndrome is an example of a chromosomal disorder caused due to non-disjunction of autosomes.
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संबंधित प्रश्न
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
Answer the following question.
Both Haemophilia and Thalessemia are blood-related disorders in humans. Write their causes and the difference between the two. Name the category of genetic disorder they both come under.
What is the reason for the 21st trisomy?
Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Identify the correct statement from the following.
In sickle-cell anaemia, shape of RBCs under oxygen tension becomes ______.
Fused ear lobes appear in the progeny due to an autosomal recessive gene. Work out the genotypes of number in the given pedigree.
Give definition of non-disjunction.
What are chromosomal disorders?
Describe Klinefelter’s syndrome.
Jacob is genetically a carrier of the disorder that affects the shape of the RBCs, as shown in the diagram below. His son James suffers from the same disorder.
- Give the biochemical reason for the disorder that changes the shape of the RBCs, as shown above.
- Draw a Punnett square to show the genotype of the mother of James.
- Name and define the type of 'point mutation' responsible for this disorder.
