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 |
 80%
From NCERT
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 |
 85%
From NCERT
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 |
 87%
From NCERT
NEET - 2022
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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
Subtopic:  Non - Disjunction & Aneuploidy |
 84%
From NCERT
NEET - 2022
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