1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
De Vries gave his mutation theory on organic evolution while working on -
A
Althea rosea
B
Oenothera lamarckiana
C
Pisum sativum
D
Drosophila melanogaster
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
A women with 47 chromosomes due to three copies of chromosome 21 is characterized by -
A
Superfemaleness
B
Turner's syndrome
C
Triploidy
D
Down's syndrome
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Haemophilia is more commonly seen in human males than in human females because -
A
This disease is due to an X-linked dominant mutation
B
This disease is due to a Y-linked recessive mutation
C
This disease is due to an X-linked recessive mutation
D
A greater proportion of girls die in infancy
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
A woman with normal vision, but whose father was colour bind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. This boy -
A
May be colour blind or may be normal vision
B
Must have normal colour vision
C
Must be colour blind
D
Will be partially colour blind since he is heterozygous for the colour blind mutant allele.
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