Advertisements
Advertisements
प्रश्न
Identify ‘a’, ‘b’, ‘c’, ‘d’, ‘e’ and ‘f’ in the table given below:
| S. No. | Syndrome | Cause | Characteristics of affected individuals | Sex (male/female/both) |
| 1. | Down’s | Trisomy of 21 |
‘a’ |
‘b’ |
| 2. | ‘c’ | XXY | Overall masculine development | ‘d’ |
| 3. | Turner’s | 45 with XO |
‘e’ |
‘f’ |
Advertisements
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, protruding and furrowed tongue and projecting lower lip. |
Both |
| 2. | Klinefelter’s | XXY | Overall masculine development | Male |
| 3. | Turner’s | 45 with XO |
(i) Poorly developed ovaries, webbed neck, broad chest with under developed breasts and below average intelligence. (ii) Body hair absent |
Female |
APPEARS IN
संबंधित प्रश्न
If only one 'X' chromosome is found in a female person, which of the following symptoms she will show?
- epicanthal skin fold
- webbing of neck
- small testis and absence of spermatogenesis
- presence of simian crease on the palm
Name a disorder a human suffers from as a result of the monosomy of the sex chromosome. Give the karyotype and write the symptoms.
Give an account of one Mendelian and one chromosomal disorder you have studied.
Match Column I with Column II and select the correct option:
| Column I | Column II | ||
| p. | Pleiotropy | I. | More than two alleles occur at the same locus on homologous chromosomes |
| q. | Multiple alleles | II. | Expression of both the alleles m heterozygous condition |
| r. | Polygenic | III. | Multiple effect of single gene |
| s. | Co-dominance | IV. | Single phenotypic character influenced by more than two genes |
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 |
Identify the disease caused by an autosomal primary non-disjunction.
Which of the following is called as Royal disease?
Clotting of blood is to ______.
Select the correct match.
What is the genotype of Turner's Syndrome?
