Question

Sol.(d) [Key Concept: Mendel — Period of Hybridization Experiments] According to NCERT, Mendel conducted his hybridization experiments on pea plants from 1856 to 1863 — a period of 7 years. His results were published in 1865 (presented at Brunn Natural History Society) and in 1866 (published in the proceedings). Mendel's work was rediscovered in 1900 by de Vries, Correns, and Tschermak. The period 1856-1863 corresponds to option (d).