Extranuclear inheritance is observed in $.....$.

The scientist who first discovered cytoplasmic inheritance was.....

In a cross between white-flowered parents,$F_1$ progeny was uniformly purple-flowered. The $F_2$ progeny showed a phenotypic ratio $9:7$ between purple-flowered and white-flowered plants. The above result indicates that the flower colour is controlled by

The phenomenon in which an allele of one gene suppresses the activity of an allele of another gene is known as

What is the inheritance of cytoplasmic genes known as?

When the expression of one gene is inhibited by the factors of another gene,it is called.....