Himachal Pradesh Clerk 703 - Free Online Practice Test

51. Stale seed technique of weed control is a _____ method.

Science

A. Cultural B. Mechanical C. Biological D. Biological

52. Triticale is a man-made hybrid between

Science

A. Wheat and Barley B. Wheat and Rye C. Rye and Oat D. Maize and Sorghum

53. The phenomenon where the offspring show superior traits as compared to parents is

Science

A. Inbreeding B. Heterosis C. Mutation D. Selection

54. The basic unit of heredity is

Science

A. DNA B. Chromosome C. Gene D. Codon

55. Mutation breeding is most effective for

Science

A. Hybrid crops B. Cross-pollinated crops C. Self-pollinated crops D. Vegetatively propagated crops

56. Late blight of potato is caused by

Science

A. Bacteria B. Fungus C. Virus D. Nematode

57. The causative organism of rust in wheat is

Science

A. Alternaria B. Fusarium C. Puccinia D. Phytophthora

58. Which is a chewing type pest?

Science

A. Aphid B. Caterpillar C. Thrips D. Mite

59. IPM stands for

Science

A. Improved Plant Management B. Integrated Pest Management C. Internal Pathogen Monitoring D. Insect Pest Management

60. Nematodes are

Science

A. Insects B. Bacteria C. Microscopic Worms D. Algae