- 1(current)
Q. No.Aneuploidy is a chromosomal disorder where chromosome number is not the exact copy of its haploid set of chromosomes, due to:
A. Substitution
B. Addition
C. Deletion
D. Translocation
E. Inversion
Choose the most appropriate answer from the options given below:
1. C and D only
2. D and E only
3. A and B only
4. B and C only
A. Substitution
B. Addition
C. Deletion
D. Translocation
E. Inversion
Choose the most appropriate answer from the options given below:
1. C and D only
2. D and E only
3. A and B only
4. B and C only
Subtopic: Â Non - Disjunction & Aneuploidy |
 74%
Level 2: 60%+
NEET - 2024
Hints
Which of the following statements are correct about Klinefelter's Syndrome?
Choose the correct answer from the options given below:
| 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 |
Subtopic: Â Non - Disjunction & Aneuploidy |Â Sex Aneuploidy - Turner & Klinefelter Syndrome |
 83%
Level 1: 80%+
NEET - 2023
Hints
Broad palm with single palm crease is visible in a person suffering from-
| 1. | Thalassemia | 2. | Down's syndrome |
| 3. | Turner's syndrome | 4. | Klinefelter's syndrome |
Subtopic: Â Non - Disjunction & Aneuploidy |Â Sex Aneuploidy - Turner & Klinefelter Syndrome |
 88%
Level 1: 80%+
NEET - 2023
Hints
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) |
Subtopic: Â Mendelian Disorders |Â Non - Disjunction & Aneuploidy |Â Sex Aneuploidy - Turner & Klinefelter Syndrome |
 88%
Level 1: 80%+
NEET - 2022
Hints
If a female individual is with small round head, furrowed tongue, partially open mouth and broad palm with characteristic palm crease. Also the physical, psychomotor and mental development is retarded. The karyotype analysis of such an individual will show :
1. 47 chromosomes with XXY sex chromosomes
2. 45 chromosomes with XO sex chromosomes
3. 47 chromosomes with XYY sex chromosomes
4. Trisomy of chromosome 21
1. 47 chromosomes with XXY sex chromosomes
2. 45 chromosomes with XO sex chromosomes
3. 47 chromosomes with XYY sex chromosomes
4. Trisomy of chromosome 21
Subtopic: Â Non - Disjunction & Aneuploidy |
 86%
Level 1: 80%+
NEET - 2022
Hints
- 1(current)
Q. No.
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