1
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
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
In order to find out the different types of gametes produced by a pea plants having the genotype AaBb, it should be crossed to a plant with the genotype -
A
aaBB
B
aabb
C
AaBb
D
AABB
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following is not true for a species ?
A
Variations occur among members of a species
B
Gene flow does not occur between the populations of a species
C
Each species is reproductively isolated from every other species
D
Members of a species can interbreed
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
There are two opposing views about origin of modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variation of DNA however suggested African origin of modern man. What kind of observation of DNA variation could suggest this ?
A
Variation only in Asia and no variation in Africa
B
Similar variation in Africa and Asia
C
Greater variation in Africa than in Asia
D
Greater variation in Asia than in Africa