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 |
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Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R)

Assertion (A):  A father will never pass the gene for haemophilia to his sons 
Reason (R):  Haemophilia is sex-linked (X-linked recessive trait). 

 

In the light of the above statements, choose the correct answer from the options given below :

1. (A) is correct but (R) is not correct.
2. (A) is not correct but (R) is correct.
3. Both (A) and (R) are correct and (R) is the correct explanation of (A).
4. Both (A) and (R) are correct but (R) is not the correct explanation of (A).
Subtopic:  Mendelian Disorders: Hemophilia |
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Given below are two statements :
Statement I: Sickle cell anaemia and Haemophilia are autosomal dominant traits.
Statement II: Sickle cell anaemia and Haemophilia are disorders of the blood.

In light of the above statements, choose the correct answer from the options given below :
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic:  Mendelian Disorders: Hemophilia |
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A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offsprings?
(a) Haemophilic son and haemophilic daughter.
(b) Haemophilic son and carrier daughter.
(c) Normal daughter and normal son.
(d) Normal son and haemophilic daughter.
Choose the most appropriate answer from the options given below:
1. (a) and (b) only
2. (b) and (c) only
3. (a) and (d) only
4. (b) and (d) only
Subtopic:  Mendelian Disorders: Hemophilia |
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