Which of the following statements are correct about Klinefelter's Syndrome?
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. 
Choose the correct answer from the options given below:
1. A and E only  2. A and B only 
3. C and D only  4. B and E only
Subtopic:  Non - Disjunction & Aneuploidy | Sex Aneuploidy - Turner & Klinefelter Syndrome |
 83%
Level 1: 80%+
NEET - 2023
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Broad palm with single palm crease is visible in a person suffering from-
1.Thalassemia2.Down's syndrome
3.Turner's syndrome4.Klinefelter's syndrome
Subtopic:  Non - Disjunction & Aneuploidy | Sex Aneuploidy - Turner & Klinefelter Syndrome |
 89%
Level 1: 80%+
NEET - 2023
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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:  Mendelian Disorders | Non - Disjunction & Aneuploidy | Sex Aneuploidy - Turner & Klinefelter Syndrome |
 88%
Level 1: 80%+
NEET - 2022
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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 |
 86%
Level 1: 80%+
NEET - 2019
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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
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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 |
 88%
Level 1: 80%+
NEET - 2019
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