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प्रश्न
During a medical investigation, an infant was found to possess an extra chromosome 21. Describe the symptoms the child is likely to develop later in the life.
During a medical investigation, an infant was found to possess an extra chromosome 21. Tell the symptoms of the child is likely to develop in the life.
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उत्तर
An additional copy of chromosome number 21 (trisomy of 21) leads to Down’s syndrome. The affected individual will have:
- short statured with small round head
- furrowed tongue
- partially open mouth
- broad palm with characteristic palm crease
- retarded physical, psychomotor and mental development
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संबंधित प्रश्न
Name the disorder caused by under secretion of thyroxine in children
Give reasons for the development of Turner’s syndrome and also mention its symptoms.
Match the Column I and Column II and select the correct option.
| List-I | List-II | ||
| i. | Holandric genes | a. | Pleiotropy |
| ii. | Multiple effects of a single gene | b. | Hypertrichosis |
| iii. | Skin colour in man | c. | Multiple Alleles |
| iv. | ABO Blood types | d. | Polygenic inheritance |
The correct answer is
HbA and HbS alleles of normal and sickle celled RBC are ______.
If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is ______.
Sickel-cell anaemia is an example of ______.
Trisomy is represented by ______.
The practice of analyzing inheritance patterns in human beings is called ______
What is the normal female karyotype?
Which diagnostic method is used to detect Mendelian disorders?
