Primitive cultivars which are selected and cultivated by farmers for many years are___________________?

A. teriary gene pool
B. Obsolete cultivars
C. Land races
D. Modern cultivars

Gradual reduction on genetic variability due to elimination of various () is called_______________________?

A. Centers of diversity
B. Land races
C. Genetic erosion
D. Genetic diversity

Allogamy is the common form of________________________?

A. Inbreeding
B. Out breeding
C. Syn breeding
D. All the above

Which generate variability_________________?

A. Mitosis
B. Meiosis
C. Peleiotropy
D. None of the above

Development of embryo from egg cell without fertilization is known as___________________?

A. Apogamy
B. Parthenogenesis
C. Apospory
D. Autogamy

Self pollination is associated with__________________?

A. Herkogamy
B. Dichogamy
C. Chasmogamy
D. Homogamy

Mating system in which each female gamete () with every male gamete is known as____________________?

A. Genetic assortative mating
B. Genetic disassortative mating
C. Random mating
D. None of the above

Male sterility in flowering plants was first reported is__________________?

A. Bateman (1952)
B. Stout (1917)
C. Koelreuter (1763)
D. Braw baker (1958)

Pollen sterility which is controlled by both cytoplasmic and nuclear genes is known as___________________?

A. GMS
B. CMS
C. CGMS
D. all the above

Self incompatibility which is controlled by single gene found in some species of__________________?

A. Cruciferae
B. Solanaceae
C. Leguminosae
D. All the above