Plant pathology is the branch of ?

Related Mcqs:

1. Red flower pea plant is crossed with the white flowered pea plant, F1 is red; with flower color is ______________________?

   A. Dominant
   B. Recessive
   C. Non-genetic
   D. Unexpressive

2. If a pure tall plant is crossed with a pure dwarf one, the ratio of tall pure dwarf in the F 2 generation after selling F1 plant will be___________________?

   A. 1:1
   B. 1:2
   C. 2:1
   D. 3:1

3. The crossing of a yomozygous tall plant and a homozygous dwarf plant would yield plants in the ratio of_________________?

   A. 2 tall: 2 dwarf
   B. All homozygous dwarf
   C. All the heterozygous tall
   D. One homozygous tall, one homozygous dwarf, two heterozygous tall

4. If a heterozygous tall plant is crossed with a homozygous dwarf plant the proportion of dwarf progerry will be__________________?

   A. 25%
   B. 50%
   C. 75%
   D. 100%

5. When red tall plant is crossed with dwarf white plant all the plants of F, are found to be tall red. which of the following ratio will be available when a test cross is made_________________?

   A. 3:1
   B. 1:2:3
   C. 1:1:1:1
   D. 1:2:1

6. When an albino plant of maize (female) is crossed with normal green plant (male) all plants in the progeny are albino because___________________?

   A. Albinism is dominant over green characters
   B. Green plastids of male parent become nitrated
   C. Plastids are inherited through maternal parents
   D. Crossing over results in structural changes in green plastids

7. A normal plant suddenly started reproducing parthengentically. the number of chromosomes of the second generation compared to the parent plant will be____________________?

   A. Double
   B. One half
   C. One fourth
   D. Same

8. The recommended plant to plant space for chiku is __________________?

   A. 20 x 20 ft
   B. 35 x 35 ft
   C. 50 x 50 ft
   D. 100 x 100 ft

9. A branch of horticulture dealing with the production and marketing of vegetable is called__________________?

   A. Viticulture
   B. Pomology
   C. Olericulture
   D. Sericulture

10. Agronomy is a branch of Agriculture that deals with________?

    A. Protection of crops from diseases & pests
    B. Principles & practice of crop production
    C. Principles of field management for crop production
    D. Breeding of crop plants

    Submitted by: Shafiq Rehman