Which of the following is correct match?
I II III
A) Thalassemia a) XO i) Flat nose, simian crease
B) Down's syndrome b) $42$ AA $+$ XY ii) Webbing of neck
C) Turner's syndrome c) $44$ AA $+$ XXX iii) Anaemia, jaundice
D) Klinefelter's syndrome d) $44$ AA $+$ XXY iv) Tall thin eunuchoid

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Solution

The correct option is B D
The presence of one or more extra copy of X-chromosome in males causes Klinefelter Syndrome. The affected individual has 44+ XXY /44+XXXY / 44+XXXXY chromosomes. The presence of an extra copy of X-chromosome produces some feminine characters in otherwise male individuals. They are sterile feminised males with enlarged breasts and exhibits a eunuchoid body habitus (tall and thin).

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In human beings 45 chromosomes or single X/XO abnormality causes

Q. Which genetic disorder is caused due to the presence of an additional copy of X-chromosome (A Karyotype of 47, XXY)?

Q. Match list-I with list-II and select the correct answer using the code given below:
List-I (Syndrome) List-II (Chromosomal abnormality)
(1) Patau's syndrome (A) 44 + XXY = 47

(2) Klinefelter's syndrome (B) 44 + XO = 45
(3) Down's syndrome (C) 46 + 1 = 47, (trisomy 13)

(4) Turner's syndrome (D) 46 + 1 = 47, (trisomy 21)

Q. Mention the chromosomal abnormalities concerned with following conditions in humans
(a) Turner's syndrome (b) Klinefelter's syndrome (C) Down's syndrome

Which of the following most accurately explains the cause for the abnormal number of chromosomes during human reproduction that can result in Down's syndrome, Turner's syndrome, or Klinefelter's syndrome?

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I	II	III
A) Thalassemia	a) XO	i) Flat nose, simian crease
B) Down's syndrome	b) $42$ AA $+$ XY	ii) Webbing of neck
C) Turner's syndrome	c) $44$ AA $+$ XXX	iii) Anaemia, jaundice
D) Klinefelter's syndrome	d) $44$ AA $+$ XXY	iv) Tall thin eunuchoid

Which of the following is correct match?IIIIIIA) Thalassemiaa) XOi) Flat nose, simian creaseB) Down's syndromeb) 42AA+XYii) Webbing of neckC) Turner's syndromec) 44AA+XXXiii) Anaemia, jaundiceD) Klinefelter's syndromed) 44AA+XXYiv) Tall thin eunuchoid

Which of the following is correct match?
I II III
A) Thalassemia a) XO i) Flat nose, simian crease
B) Down's syndrome b) $42$ AA $+$ XY ii) Webbing of neck
C) Turner's syndrome c) $44$ AA $+$ XXX iii) Anaemia, jaundice
D) Klinefelter's syndrome d) $44$ AA $+$ XXY iv) Tall thin eunuchoid