Question

The term mutation was given by
A. De Vries
B. Mendel
C. Darwin
D. Lamarck

Answer 1

He was a Dutch botanist and one of the main geneticists. He is known mostly for proposing the idea of genes, rediscovering the laws of heredity during the 1890s while obviously unconscious of Gregor Mendel's work, for presenting the expression "mutation", and for building up a transformation hypothesis of advancement.

Complete answer:
De Vries was most popular for his mutation hypothesis. In 1886, he had found new structures among a presentation of the night primrose (Oenothera lamarckiana) filling wild in a relinquished potato field close to Hilversum, having gotten away from a close by garden.Taking seeds from these, he found that they delivered numerous new assortments in his test gardens; he presented the term transformations for these out of nowhere showing up varieties. In his two-volume distribution The Mutation Theory he proposed that development, particularly the cause of species, may happen more often with such enormous scope mutations than through Darwinian gradualism, essentially recommending a type of saltationism. De Vries' hypothesis was one of the central competitors for the clarification of how development functioned, driving, for instance, Thomas Hunt Morgan to consider mutations in the natural product fly, until the cutting edge transformative union turned into the prevailing model during the 1930s. During the early many years of the 20th century, de Vries' hypothesis was tremendously compelling and kept on entrancing non-scholars long after mainstream researchers had deserted it. The enormous scope primrose varieties ended up being the aftereffect of different chromosomal anomalies, including ring chromosomes, adjusted lethals and chromosome duplications (polyploidy), while the term transformation currently by and large is confined to discrete mutations in the DNA grouping.

So, the Correct Option: - (A) De Vries.

Note: In 1889, De Vries distributed his book Intracellular Pangenesis, in which, in light of an adjusted rendition of Charles Darwin's hypothesis of Pangenesis of 1868, he proposed that various characters have distinctive genetic transporters. He explicitly proposed that the legacy of explicit attributes in creatures comes in particles. He called these units pangenesis, a term 20 years after the fact to be abbreviated to qualities by Wilhelm Johannsen.