Exemplar Problems

Question:

Briefly mention the contribution of T.H. Morgan in genetics.

Answer:

T.H. Morgan, an American geneticist, made significant contributions to the field of genetics, particularly in the early 20th century. His most notable contribution was the discovery of the relationship between genes and chromosomes, specifically the concept of gene linkage. He conducted experiments with fruit flies (Drosophila melanogaster) and observed that certain genes were often inherited together because they were located on the same chromosome. This led to the development of the concept of genetic mapping and the understanding of how genes are physically arranged on chromosomes.