Match List I with List II:
List I List II
A.   Down's syndrome  I.  \(11^{\text {th }}\) chromosome
B.  \(\alpha\) -Thalassemia  II.  \(' \mathrm{X} '\) chromosome
C.  \(\beta\) -Thalassemia  III.  \(21^{\text {st }}\) chromosome
D.  Klinefelter's
syndrome
IV.  \(16^{\text {th }}\) chromosome

Choose the correct answer from the options given below:
1. A-II, B-III,C-IV, D-I 
2. A-III, B-IV,C-I, D-II 
3. A-IV, B-I, C-II, D-III 
4. A-I, B-II, C-III, D-IV
Subtopic:  Mendelian Disorders | Chromosomal Disorders |
 83%
From NCERT
NEET - 2024
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Which of the following is NOT an autosomal recessive disorder? 
1. Sickle cell anemia 
2. Phenylketonuria 
3. Haemophilia
4. Thalassemia
Subtopic:  Mendelian Disorders | Mendelian Disorders: Hemophilia |
 79%
From NCERT
NEET - 2024
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The manifestations of phenylketonuria are given below. Choose the incorrect answer from the given options:
1. Mental retardation
2. Skin rashes
3. Excessive accumulation of phenylpyruvate in blood
4. Furrowed tongue
Subtopic:  Mendelian Disorders |
 67%
NEET - 2024
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Which of the following occurs due to the presence of autosome linked dominant trait?
1. Thalessemia
2. Sickle cell anaemia
3. Myotonic dystrophy
4. Haemophilia

Subtopic:  Mendelian Disorders |
 81%
From NCERT
NEET - 2022

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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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