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in-human-beings-45-chromosomes-or-single-x-xo-abnormality-causesdowns-syndrome-klinefelters-syndrome-turners



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Q1.

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


  1. Down’s syndrome

  2. Klinefelter’s syndrome

  3. Turner’s syndrome

  4. Edward’s syndrome

Q2.
Match the syndromes and chromosomal abnormalities given in columns.
  List I - Syndrome List II - Chromosomal abnormalities
 A Klinefelter syndrome p Trisomy 13
 B Turner's syndrome q Trisomy 18
 C Super female r 44+XXY
 D Patau's syndrome s 44+XXX
   t 44+XO

  1. A- r, B- t, C- s, D- p
  2. A- p, B- r, C- q, D- t
  3. A- q, B- p,C- t, D- s
  4. A- s, B- r, C- t, D- p
Q3.

Match the follow.

a) Turner syndrome      (i) Holandric genes

b) Downs syndrome     (ii) Trisomy of 21

c) y chromosome         (iii) Quantitative abnormality of haemoglobin

d) Thalassemia             (iv) 45, XO

Q4.
Abnormalities in sex chromosomes cause Turner Syndrome (Turner - Monosomy) means 
  1. 44+XX
  2. 44+X
  3. 44+XXY
  4. 44+XY
Q5.
In human beings 45 chromosomes/ single X/XO abnormality causes
  1. Down's syndrome
  2. Klinefelter's syndrome
  3. Turner's syndrome
  4. Edward's syndrome

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