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प्रश्न
Mention the symptoms of Down syndrome.
Mention any six symptoms of disorder caused by trisomy of 21 chromosome.
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उत्तर
- Mental retardation, either mild or moderate.
- Skeletal underdevelopment.
- Unique facial characteristics, such as a small mouth, ears, and head.
- Usually round and flat, with an open mouth and a flat nose.
- Protruding tongue.
- The inner corner of the eyes is covered by an epicanthal skin fold.
- Slanting eyes.
- Broad palms with a single Palmer crease; flat hands with stubby fingers.
Notes
Students should refer to the question according to their questions and preferred marks.
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संबंधित प्रश्न
Which of the following is not correct?
How was it concluded that genes are located on chromosomes?
Match List I with List II.
| List I | List II | ||
| A. | Down’s syndrome | I. | 11th chromosome |
| B. | α-Thalassemia | II. | ‘X’ chromosome |
| C. | β-Thalassemia | III. | 21st chromosome |
| D. | Klinefelter’s syndrome | IV. | 16th chromosome |
Choose the correct answer from the options given below:
Broad palm with single palm crease is visible in a person suffering from ______.
Which of the following karyotypes represents Down's Syndrome?
What is the primary cause of Down's Syndrome in approximately 95% of cases?
What is the karyotype of Patau Syndrome?
What is the primary characteristic of polyploidy?
Which type of structural chromosomal abnormality results in the permanent loss of a chromosomal segment?
What type of structural abnormality is represented by a chromosomal segment that detaches and reattaches in reverse orientation?
