- 1(current)
Q. No.If a female individual is with a 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 |
Subtopic: Non - Disjunction & Aneuploidy | Sex Aneuploidy - Turner & Klinefelter Syndrome |
89%
Level 1: 80%+
NEET - 2022
Hints
| 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 answer
| Option | (a) | (b) | (c) | (d) |
|---|---|---|---|---|
| 1. | (ii) | (iv) | (i) | (iii) |
| 2. | (i) | (iv) | (ii) | (iii) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (iv) | (ii) | (i) | (iii) |
Subtopic: Sex Determination | Sex Aneuploidy - Turner & Klinefelter Syndrome |
82%
Level 1: 80%+
NEET - 2019
Hints
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
Subtopic: Sex Aneuploidy - Turner & Klinefelter Syndrome |
85%
Level 1: 80%+
NEET - 2019
Hints
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In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter's syndrome in males. It proves:
| 1. | In human beings, the Y chromosome is active in sex determination. |
| 2. | Y chromosome is active in sex determination in both human beings and Drosophila. |
| 3. | In Drosophila Y-chromosome decides femaleness. |
| 4. | The Y chromosome of man has genes for the syndrome. |
Subtopic: Sex Aneuploidy - Turner & Klinefelter Syndrome |
Level 3: 35%-60%
AIPMT - 2000
Hints
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
Subtopic: Sex Aneuploidy - Turner & Klinefelter Syndrome |
87%
Level 1: 80%+
NEET - 2019
Hints
- 1(current)
Q. No.
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