Heterosis results due to____________________?

Related Mcqs:

1. Dominance hypothesis of heterosis was first proposed by__________________?

   A. Davenport (1908)
   B. Shull (1914)
   C. Bruce (1910)
   D. Davis (1927)

2. The term heterosis was coined by____________________?

   A. Hull (1945)
   B. Bruce (1910)
   C. East (1908)
   D. Shull (1914)

3. The term useful heterosis was first used by__________________?

   A. Meredith and Bridge (1972)
   B. Richey (1914)
   C. Jenkins (1935)
   D. Hull (1950)

4. Heterosis can be fully exploited in the form of_____________________?

   A. Composites
   B. Hybrids
   C. Multi lines
   D. Synthetics

5. Heterosis can be fixed by___________________?

   A. Apomixis
   B. Polyploidy
   C. Asexual reproduction
   D. All the above

6. A healthy plant not selling seed may be due to____________________?

   A. Self incompatibility
   B. Male sterility
   C. Female sterility
   D. All the above

7. Problem of erosion in Thal and Cholistan is due to____________________?

   A. Wind
   B. Fire
   C. Water
   D. Atmosphere

8. Pneumatic potential is due to____________________?

   A. Water
   B. Petrol
   C. Soil
   D. Gas

9. Continuous variation are attrions are attributed to____________________?

   A. Crossingover
   B. Polyploidy
   C. Mutations
   D. Linkage

10. Parthenocarpic refers to____________________?

    A. Single seeded fruit
    B. Multi seed fruit
    C. Seed less fruit
    D. All the above