Evolutionary convergence is the development of
1. common set of characters in the group of different ancestry
2. dissimilar characters in closely related groups
3. common set of characters in closely related groups
4. random mating
The finches of Galapagos islands provide an evidence in favour of
1. special creation
2. evolution due to mutation
3. retrogressive evolution
4. biogeographical evolution
Which of the following primate is the closest relative of humans ?
1. Rhesus monkey
2. Orangutan
3. Gorilla
4. Gibbon
Convergent evolution is illustrated by
1. dogfish and whale
2. rat and dog
3. bacterium and protozoan
4. starfish and cuttle fish
Evolutionary history of an organism is known as
1. ancestry
2. palaeontology
3. ontogeny
4. phylogeny
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