Question

G. J. Mendel died in the year
(A) 1884
(B) 1890
(C) 1900
(D) 1926

Answer 1

Hint: G. J. Mendel was born on 20 July 1822 and died in January after completing 61 years of his life. G. J. Mendel died in the same year in which the German Zoologist Alfred Edmund Brehm died.

Complete step by step answer:
G. J. Mendel died at the age of 61 on January 6, 1884. He was a great scientist and given the famous and very useful laws of genetics. The Mendel's laws of inheritance are three in number that includes the law of dominance, the law of segregation, and the law of independent assortment.
Mendel worked with seven characteristics of pea plants which are: plant height, pod shape and color, seed shape and color, and flower position and color. Taking seed color as an example, Mendel showed that when a true-breeding yellow garden pea and a true-breeding green garden pea were cross-bred their offspring always produced yellow seeds. However, within the next generation, the green peas reappeared at a ratio of 1 green to three yellow. To elucidate this phenomenon, Mendel coined the terms "recessive" and "dominant" in relevance to certain traits. in the preceding example, the green trait, which seems to have vanished in the first filial generation, is recessive and therefore the yellow is dominant. He published his work in the year 1866, demonstrating the actions of invisible "factors"—now called genes—in predictably determining the traits of an organism.
So, the correct answer is ‘(A) 1884’.

Note: In the year 1884 only Robert Koch and Friedrich Loeffler formulated Koch's postulates on the causal relationship between microbes and diseases. Loeffler also discovers the causative organism for diphtheria, Corynebacterium diphtheriae.