The term useful heterosis was first used by__________________?

Related Mcqs:

Cytoplasmic sterility is govemed by________________________?

A. Nuclear genes B. Plasma genes C. Monoalleleic genes D. None of the above...

Convergent improvement was proposed by________________?

A. Jones (1920) B. Richy (1920) C. Hays (1919) D. East (1920)...

If the frequency of a dominant phenotype in a stable population in 75% the frequency of the dominant allele in that population is____________________?

A. 50% B. 75% C. 25% D. 40$...

If a plant heterozygous for tallness is selfed, f2 feneration has both tall and dwarf plants. this proves the principle of__________________?

A. Dominance B. Segregation C. Independent assortment D. Incomplete dominance...

An auxotroph is_________________?

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...