In recent years, DNA sequences (nucleotide sequence) of mt-DNA and Y chromosomes were considered for the study of human evolution, because:
 

1.	They are small, and therefore, easy to study
2.	They are uniparental in origin and do not take part in recombination
3.	Their structure is known in greater detail
4.	They can be studied from the samples of fossil remains

Industrial melanism is an example of:
 

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?

Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution:

1. Parasites and predators as natural enemies

2. Survival of the fittest

3. Struggle for existence

4. Discontinuous variations

Which one of the following describes correctly the homologous structures:
 

Reason for diversity in living being: 
1.  Mutation
2. Long-term evolutionary change
3.  Gradual change
4. Short-term evolutionary change

Similarities in organisms with different genotypes indicate:
1.  Microevolution
2.  Macroevolution
3.  Convergent evolution
4.  Divergent evolution

Which of the following is the closest relative of man:
1.  Chimpanzee
2.  Gorilla
3.  Orangutan
4.  Gibbon

Which of the following is the correct order of the evolutionary history of man:
 

First life on earth was:
1.  Cyanobacteria
2.  Chemohetrotrophs
3.  Autotrophs
4.  Photoautotrophs