Self incompatibility in which the genes express in the style is known as__________________?

Related Mcqs:

1. Self incompatibility which is controlled by two genes is found in___________________?

   A. Gramineae
   B. Solanaceae
   C. Cruciferae
   D. None of the above

2. The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________________?

   A. Episode
   B. Co dominance
   C. Epistasis
   D. Dominance

3. When a wheat variety with red kernels (homozygous for two non allelic and independent dominant genes) is crossed with white kenneled wheat (homozygous for two recessive non allelic independent genes), the phenotypic ratio in the F2 generation would be________________?

   A. 9:3:3:1
   B. 9:7
   C. 9:9:9:3:3:3:1
   D. 1:4:6:4:1

4. The term self incompatibility was coined by________________?

   A. Koelreuter (1763)
   B. Gerstel (1950)
   C. East (1940)
   D. None of the above

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

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

6. Gamatophytic system of self incompatibility was first discovered by____________________?

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

7. Gametophytic self incompatibility was first reported in___________________?

   A. Lena sativa
   B. Nicotine sandarac
   C. Set aria sphacelata
   D. Scale cereals

8. Self incompatibility is used for hybrid seed production in______________________?

   A. Rice
   B. Maize
   C. Cabbage
   D. Tomato

9. Self-incompatibility is controlled by_________?

   A. Multiple alleles
   B. Polygenes
   C. Plasmogenes
   D. Both B and C

   Submitted by: Bahram Rahi

10. A species or type of a plant derived from doubling the chromosome of the F1 hybrid of two known species is known as__________________?

    A. Autodiploid
    B. Hexaploid
    C. Autopolyploid
    D. Amphidiploid