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प्रश्न
Give reasons for the development of Turner’s syndrome and also mention its symptoms.
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उत्तर
Turner Syndrome (X monosomy/XO females):
- It is a sex chromosomal disorder caused due to non-disjunction of chromosomes during gamete formation.
- Individual born with Turner syndrome has 44 autosomes with XO.
- They are phenotypically female. They have short stature (height) and webbed neck, lower posterior hair line, broad shield-shaped chest, poorly developed ovaries and breast, and low intelligence.
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Very Short Answer Question.
Give an example of a chromosomal disorder caused due to nondisjunction of autosomes.
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 |
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