Genetic drift operates in 

1. small isolated population

2. large isolated population

3. fast reproductive population

4. slow reproductive population

Which of the following pair is homologous organ?

1. Wings of birds and locust

2. Wings of birds (sparrow) and pectoral fins of fish

3. Wings of bat and butterfly

4. Legs of frog and cockroach

De Vries gave his mutation theory on organic evolution while working on

1. Pisum sativum

2. Drosophila melanogaster

3. Oenothera lamarckiana

4. Althea rosea

Peripatus is a connecting link between

1. Ctenophora and Platyhelminthes

2. Mollusca and Echinodermata

3. Annelida and Arthropoda

4. Coelenterata and Porifera

The age of the fossil of Dryopithecus on the geological time scale is 

1. 5 x 10⁶ yr back

2. 25 x 10⁶ yr back

3. 50 x 10⁶ yr back

4. 75 x 10⁶ yr back

Evolution is 

1. progressive development of a race

2. history and development of race along with variations

3. history of race

4. development of race

Darwin's finches provide an excellent evidence in favour of evolution. This evidence comes from the field of 

1. Biogeography

2. Anatomy

3. Embryology

4. Palaeontology

Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?

1. They were able to reproduce

2. They could separate combinations of molecules from the surroundings

3. They were partially isolated from the surroundings

4. They could maintain an internal environment

Darwin's finches are an excellent example of 

1. adaptive radiation

2. seasonal migration

3. brood parasitism

4. connecting links

Basic principles of embryonic development were pronounced by 

1. Von Baer 

2. Weismann

3. Haeckel

4. Morgan