Evolution Question 48
48. de Vries gave his mutation theory on organic evolution while working on:
[2005]
(a) Pisum sativum
(b) Drosophila melanogaster
(c) Oenothera lamarckiana
(d) Althea rosea
Show Answer
Answer : c
Hints & Solution
(c) Pisum sativum - Mendel
Drosophila melanogaster - T. H. Morgan.
Hugo de Vries (1901) put forward a theory of evolution, called mutation theory. The theory states that evolution is a jerky process where new varieties and species are formed by mutations ( $=$ sports or discontinuous variations) that function as raw material of evolution.
