All organism or cell having a chromosome number that is not an exact multiple of the monoploid or basic number is known as___________________?

A. Frankel (1977)
B. Bresbaker (1958)
C. Hughes and Babceek
D. East and Mangelsdref (1925)

A. A mutant organism which has lost its ability to synthesize one or more essential nutrients
B. A plan that is able to synthesize its own carbohydrates
C. An organism that depends on other organism for meting its nutrient requirements
D. non of these

A. Methionine
B. Arginine
C. Lysine
D. Trytophan