Question

List five(5) discoveries in genetics that have occured in the twentieth century ( including the approximately year and name of the principle investigator for full credit).

Answer 1

In 1905 William Bateson coined the term ‘genetics’.

In 1913, first, the genetic map of the chromosome by Alfred Sturtevant.

In 1941 Edward Lawrie Tatum and George Wells Beadle discovered that genes codes for proteins.

In 1943, DNA as a genetic material was proved by Oswald Avery.

In 1950 Erwin chargaff predicts that DNA composition is specific for a particular species.

In 1952 Frederick sangar demonstrated that proteins are sequences of amino acids moreover Hershey-Chase proves DNA as a genetic material of phages through experiment.

1953 James Watson and Francis Crick discovered helical structure of DNA.