In: Biology
Read about the Germ Plasm theory. Propose any experiment that would act as a proof or germ plasm theory of inheritance.
Germ Plasm theory was proposed by August Friedrich Leopold Weismann. This theory states that inheritance can only takes place by means of the germ cells - the gametes such as egg cells and sperm cells. The somatic cells of the body do not play a role in heredity.
In an experiment,
cut the tail of mice continuously for 5 generations, note that no mice will born with no tail or shorter tail even after 5 generations.
In the other experiment,
mutate the egg or sperm cells of the parent mouse by knocking out the dominant gene for coat color. Then one can observe that offsprings are born with no coat color i.e., knocked out color will not be seen is offsprings.