Plant Breeding and Genetics

50%

25%

75%

40$

Florida

Columbia

CIP Peru

None of these

Beadle and Tatum

Iscki and Sakai

Watson and Crick

None of these

Canada

Mexico

Iran

India

Maize

Oat

Wheat

Barley

Ribosomes

Chromosome

Nuclcolus

Plasmalemma

A mutant organism which has lost its ability to synthesize one or more essential nutrients

An organism that depends on other organism for meting its nutrient requirements

A plan that is able to synthesize its own carbohydrates

none of these

Test cross

Backcross

Hybridization

Biohybrid

Berseem

Pearl millet

Lucem

Sorghum

Lemer (1954)

Robinson (1948)

Perkins (1971)

Comstock and Moll (1963)