1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originates as adaptation. These imprints need to be used -
A
On plates with minimal medium
B
Only on plates with streptomycin
C
Only on plates without streptomycin
D
On plates with and without streptomycin
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
At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium ?
A
0.48
B
0.24
C
0.36
D
0.16