Agricultural Science Questions
Question 276:
The process of meiosis in plants ensures the production of reproduction of reproductive cells with
- A The same number of chromosomes like the parent plant
- B Half the number of chromosomes of the parent plant
- C No chromosomes like the parent plant
- D Thrice the number of chromosomes of the parent plant
- E Twice the number of chromosomes of the parent plant
Question 277:
Why should a seed-producing farmer spray an insecticide on his crops only when the bees are not around?
- A The bees would sting him and he therefore avoids them
- B The farmer does not want to waste his chemicals
- C Bees are important for pollination of his crops
- D Bees produce honey for him in his farm
- E Bees are harmless insects
Question 278:
The average seed rate for maize is 25 kg per hectare. Allowing for a seed wastage of 5 per cent.How many kilogram of seeds would be required in planting 10 hectares of farmland?
- A 237.5
- B 238.0
- C 250.0
- D 255.0
- E 262.5
Question 279:
Thrips cause serious mechanical damages to crops by their
- A Feeding activities on flowers, leaves and fruits
- B Laying eggs on plants
- C Sucking of the sap of crops
- D Burrowing activities causing damping off in crops
- E Activities as vectors of bacterial diseases
Question 280:
The expression of a gene in the phenotype irrespective of whether the cell is homozygous or heterozygous is known as
- A Recessive
- B Partial dominance
- C Test-cross
- D Segregation
- E Dominance