Genetic drift operates in:
1. Small isolated population
2. Large isolated population
3. Fast reproductive population
4. Slow reproductive population
There is no life on the moon due to the absence of:
1. O2
2. Water
3. Light
4. Temperature
According to fossils that have been discovered till now, the origin and evolution of man started from which country?
1. France
2. Java
3. Africa
4. China
In which condition, the gene ratio remains constant for any species?
1. Sexual selection
2. Random mating
3. Mutation
4. Gene flow
The sequence of which of the following is used to know the phylogeny?
1. | m-RNA | 2. | r-RNA |
3. | t-RNA | 4. | DNA |
What is true for individuals of the same species:
1. Live in the same niche
2. Live in the same habitat
3. Interbreeding
4. Live in different habitat
In which era reptiles were dominated:
1. Coenozoic era
2. Mesozoic era
3. Paleozoic era
4. Archaeozoic era
Convergent evolution is illustrated by:
1. Rat and dog
2. Bacterium and protozoan
3. Starfish and cuttlefish
4. Dogfish and whale
Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?
1. | Overproduction, variations, constancy of population size, natural selection |
2. | Variations, constancy of population size, overproduction, natural selection |
3. | Overproduction, constancy of population size, variations, natural selection |
4. | Variations, natural selection, overproduction, constancy of population size |
Random genetic drift in a population probably results from:
1. Highly genetically variable individuals
2. Interbreeding within this population
3. Constant low mutation rate
4. Large population size