Question

Who first proved that heredity is controlled by nucleus not by cytoplasm?

• A. Hershay and Chase
• B. Strassburger
• C. Hammerling
• D. Mendel

Answer 1

The correct option is C Hammerling

Hammerling began growing acetabularia in laboratories in the 1930s. There he discovered that the plant had one cell and the nucleus was always located in the rhizoid. Then he began studying the roles of the nucleus and cytoplasm by experimenting with the acetabularia. He demonstrated that nucleus has the genetic material which regulates the inheritance of characters.

So, the correct answer is option C.