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4.Principles of Inheritance and Variation
normal
Hugo de Vries formulated the “Mutation Theory'' based on the experiments he conducted on
A
Althea rosea
B
Pisum sativum
C
Drosophila melanogaster
D
Oenothera lamarckiana
Solution
(d)De Vries observed a number of mutation in his experimental plant evening primrose, oenothera lamarkiana.
Standard 12
Biology