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 |
 79%
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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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
 83%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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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)
Subtopic:  Sex Determination | Sex Aneuploidy - Turner & Klinefelter Syndrome |
 79%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
 86%
From NCERT
NEET - 2019
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A human female with Turner's syndrome:

1. has 45 chromosomes with XO

2. has one additional chromosome.

3. exhibit male character

4. is able to produce children with a normal husband.

Subtopic:  Sex Aneuploidy - Turner & Klinefelter Syndrome |
 87%
From NCERT
AIPMT - 2014
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/linkage?
1. Klinefelter's syndrome-44 autosomes + XXY
2. Colourblindness – Y-linked
3. Erythroblastosis foetalis-- X-linked
4. Down syndrome--44 autosomes + XO
Subtopic:  Sex Aneuploidy - Turner & Klinefelter Syndrome |
 85%
From NCERT
AIPMT - 2008
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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
From NCERT
AIPMT - 2000
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NEET 2023 - Target Batch - Aryan Raj Singh
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