Advertisements
Advertisements
प्रश्न
Give any 'two' names of X-linked diseases
Advertisements
उत्तर
Colour blindness and haemophilia are examples of X-linked diseases.
APPEARS IN
संबंधित प्रश्न
What do sex linked traits appear in males than in females?
Feminised males have ______ chromosomes.
Match the Column-I with Column-II and choose the CORRECT answer
| Column-I | Column-II | ||
| P. | Klinefelter syndrome | i. | Mutation in autosomal gene |
| Q. | Thalassaemia | ii. | Mutation sex chromosome linked gene |
| R. | Down syndrome | iii. | Trisomy of autosome |
| S. | Colour blindness | iv. | Trisomy of sex chromosome |
HbA and HbS alleles of normal and sickle celled RBC are ______.
Sickel-cell anaemia is an example of ______.
Mental retardation in man associated with sex chromosomal abnormality is usually due to ______.
A person with 47 chromosomes due to an additional Y-chromosome suffers from a condition called ______.
Why is the frequency of red-green colour blindness is many times higher in males than that in females?
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.
At what level does the defect occur in chromosomal disorders?
