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प्रश्न
Identify 'a', 'b', 'c',’d’, 'e' and 'f' in the table given below:
| No. | Syndrome | Cause | Characteristics of affected individuals | Sex Male/Female/Both |
| 1. | Down's | Trisomy of 21 | 'a' (i) (ii) |
'b' |
| 2. | 'c' | XXY | Overall masculine development. |
'd' |
| 3. | Turner's | 45 with XO | 'e' (i) (ii) |
'f' |
उत्तर
| No | Syndrome | Cause | Characteristics of affected individuals |
Sex/Male/Femal e/Both |
| 1. | Down’s | Trisomy of 21 |
(i) Broad forehead (ii) Permanently open mouth, |
Both |
| 2. | Klinefelter’s | XXY | Overall masculine development | Male |
| 3. | Turner’s | 45 with XO | (i) Short statured females with webbed neck (ii) Body hair absent |
Female |
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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
The genotype of a person withTumer's syndrome will be:
(i) 44+XXY
(ii) 44+XYY
(iii) 44+XO
(iv) 44+XXYY
Attempt any TWO of the following:
‘The gene for sickle cell anaemia in homozygous condition is lethal and produces sickle cell trait in heterozygous carrier’. Explain.
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.
In human beings 45 chromosomes/single X/XO abnormality causes ______.
Give an account of one Mendelian and one chromosomal disorder you have studied.
A person with 47 chromosomes due to an additional Y-chromosome suffers from a condition called ______.
Select the disease which is caused by recessive autosomal genes when present in homozygous conditions.
Identify chromosomal disorder caused due to non-disjunction of the 21st number of chromosomes and enlist its symptoms.
Fused ear lobes appear in the progeny due to an autosomal recessive gene. Work out the genotypes of number in the given pedigree.
