1
The idea of mutations was brought forth by :
- Charles Darwin, who observed a wide variety of organisms during sea voyage
- Hugo de Vries, who worked on evening primrose
- Gregor Mendel, who worked on Pisum sativum
- Hardy and Weinberg, who worked on allele frequencies in a population
Answer
(2) Hugo de Vries, who worked on evening primrose
Solution
As per NCERT, Hugo de Vries, based on his work on evening primrose ( Oenothera lamarckiana), brought forth the idea of mutations — large, sudden, discontinuous variations in a population.
He believed that mutation causes evolution (saltation), not the minor variations stressed by Darwin.
Answer: (2)
AIPMT 2012 (Mains)