A. | This disorder was first described by Langdon Down (1866). |
B. | Such an individual has overall masculine development. However, the feminine development is also expressed. |
C. | The affected individual is short statured. |
D. | Physical, psychomotor and mental development is retarded. |
E. | Such individuals are sterile. |
1. | A and E only | 2. | A and B only |
3. | C and D only | 4. | B and E only |
1. | Thalassemia | 2. | Down's syndrome |
3. | Turner's syndrome | 4. | Klinefelter's syndrome |
Match List-I with List-II
List-I | List-II | ||
(a) | Haemophilia | (i) | Inborn error of metabolism which lacks an enzyme that converts phenylalanine into tyrosine |
(b) | Down's Syndrome | (ii) | Sex-linked recessive disorder; a defect in blood coagulation |
(c) | Phenylketonuria | (iii) | Presence of additional copy of X-chromosome (44+XXY) |
(d) | Klinefelter's Syndrome | (iv) | Additional copy of chromosome number 21 |
Choose the correct answer from the options given below:
(a) | (b) | (c) | (d) | |
1. | (ii) | (iv) | (i) | (iii) |
2. | (iv) | (ii) | (i) | (iii) |
3. | (ii) | (iii) | (i) | (iv) |
4 | (i) | (ii) | (iii) | (iv) |
What is the genetic disorder in which an individual has an overall masculine development gynaecomastia, and is sterile?
1. Down's syndrome
2. Turner's syndrome
3. Klinefelter's syndrome
4. Edward syndrome
Match the items of Column-I with Column-II:
Column-I | Column-II | ||
(a) | XX-XO method of sex determination | (i) | Turner's syndrome |
(b) | XX-XY method of sex Determination | (ii) | Female heterogametic |
(c) | Karyotype-45 | (iii) | Grasshopper |
(d) | ZW-ZZ method of Sex Determination | (iv) | Female homogametic |
Select the correct option from the following:
(a) | (b) | (c) | (d) | |
1. | (ii) | (iv) | (i) | (iii) |
2. | (i) | (iv) | (ii) | (iii) |
3. | (iii) | (iv) | (i) | (ii) |
4. | (iv) | (ii) | (i) | (iii) |
In which genetic condition, each cell in the affected person, has three sex chromosomes XXY?
1. Thalassemia
2. Klinefelter's Syndrome
3. Phenylketonuria
4. Turner's Syndrome