Question

The term 'genetics' was coined by
(A) Bateson
(B) Punnett
(С) Mendel
(D) Morgan
(E) Johannsen

Answer 1

Hint: The transfer of characters from parents to offspring is known as inheritance. Progeny produced resembles the parents closely but is not identical in all the respects. The reason behind is variation. Variation is the degree by which progeny differ from their parents. The branch of science which deals with the inheritance as well as the variation of characters from parents to offspring is Genetics.

Complete answer:
Gregor Johann Mendel was the first to define the basis of inheritance that is scientific and variation by conducting hybridisation experiments. Mendel was born on July 22, in 1822. He worked on Pisum sativum also known as pea (Garden pea or Edible pea) for almost 7 years (1856-1863) and proposed the law of inheritance in living organisms.
Now let us know the work by every scientist:-
Bateson. :- he gave the term allele . Genes that code for a pair of contrasting traits are known as alleles . Alleles are somewhat different forms of the same gene.
Punnett :- Punnett square was developed by a British geneticist, Reginald C. Punnett. Punnett square is defined as the graphical representation of traits and cross between them to calculate the probability of all possible genotypes of offspring in a genetic cross.
Mendel :- Mendel proposed that something was being stably passed down, unchanged. from parent to offspring. This process occurs through the gametes, over successive generations. He called these things as 'factors. Gregor Johann Mendel was the first to define the scientific basis of inheritance.
Morgan :- Experimental verification of the chromosomal theory of inheritance is given by Thomas Hunt Morgan and his colleagues that led to discovering the basis for the variations that sexual reproduction produced. Morgan worked on the tiny fruit flies known as Drosophila melanogaster, which were found very suitable for such studies.
Johannsen :- he gave the term genetics and also gave the term pure line . . The branch of science which deals with the inheritance as well as the variation of characters from parents to offspring is Genetics.

Our required answer is E that is Johansson.

Note:
Pea has many distinct alternative traits (clear contrasting traits). It produces a large number of seeds and completes its life cycle in one season. Flowers of pea show self (bud) pollination, so true breeding is easy to artificially cross-pollinate the pea flowers. The hybrids thus produced were fertile. A true breeding line is defined as the one that when undergone continuous self-pollination, shows the stable trait inheritance and expression for several generations as described by Johannsen.