Q. Hammerling performed experiments to prove that nucleus is the physical basis of heredity. He worked on
Solution:
Hammerling performed experiments with the single celled green algae, Acetabularia to prove that nucleus is the physical basis of heredity and showed that the nucleus of a cell contains the genetic information that directs cellular development.
Each Acetabularia cell is composed of three segments: the "foot" or base, the "stalk," and the "cap", in which Foot contains the nucleus. Hammerling grafted the stalk of one species of Acetabularia onto the foot of another species in his experiment. The cap that developed on the grafted cell matched the species of the foot rather than that of the stalk because the base contains nucleus (genetic information), and the nucleus directs cellular development.
Each Acetabularia cell is composed of three segments: the "foot" or base, the "stalk," and the "cap", in which Foot contains the nucleus. Hammerling grafted the stalk of one species of Acetabularia onto the foot of another species in his experiment. The cap that developed on the grafted cell matched the species of the foot rather than that of the stalk because the base contains nucleus (genetic information), and the nucleus directs cellular development.