1
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.
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following is not a hereditary disease ?
A
Cretinism
B
Cystic fibrosis
C
Haemophilia
D
Thalasasemia
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt
A
75% will be tall with red fruit
B
25% will be tall with red fruit
C
50% will be tall with red fruit
D
All the offspring will be tall with red fruit
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
One of the parents of a cross has a mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of F2 progenies that mutation is found in -
A
50% of the progenies
B
1/3 of the progenies
C
None of the progenies
D
All the progenies

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