In Incern, resistance to spotted aphid is associated with__________________?

Related Mcqs:

1. In apple wool aphid is genetically controlled by___________________?

   A. 2 D
   B. ID
   C. 2d
   D. Id

2. A tail, including the tail-like structure of an aphid:_______?

   A. Cenchri
   B. Annulate
   C. Apical
   D. Cauda

   Submitted by: Shafiq Rehman

3. Self pollination is associated with__________________?

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

4. The term vertical resistance and horizontal resistance were first used by________________________?

   A. Van der plank (1963)
   B. Karpechenko (1927)
   C. Hull (1945)
   D. Correns (1900)

5. In wheat, example of durable insect resistance includes resistance to___________________?

   A. Green bugs
   B. Stem saw fly
   C. Hessian fly
   D. All the above

6. In barley, resistance to cereal leaf beetle is associated with_________________?

   A. High aspartic acid
   B. Waxiness of leaves
   C. High silica content
   D. High benzol alcohol

7. Drought resistance is associated with___________________?

   A. Biochemical factors
   B. Physiological factors
   C. Morphological factors
   D. all the above

8. Sericulture deals with__________________?

   A. Fisheries
   B. Honey bees
   C. Silk worm
   D. Forest trees

9. Vertical resistance is also known as_________________?

   A. Race specific
   B. Oligogenic
   C. Qualitative
   D. All the above

10. Many groups of insects have developed resistance to DDT and other insecticides as a result of____________________?

    A. Crossing over
    B. Polyploidy
    C. Segregation
    D. Gene mutation