Biology - Agriculture and Animal Husbandry

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Question - 1

Which of the following gases is released from rice fields in the most prominent quantities?

  • A Carbon dioxide
  • B Methane
  • C Carbon monoxide
  • D Sulphur dioxide

Question - 2

Which among the following is the oldest board under the department of commerce?

  • A The Rubber Board 
  • B The Tea Board
  • C The Coffee Board
  • D The Tobacco Board

Question - 3

Match List I (Disease) with List II ( Causal Organism) and select the correct answer using the codes given below the lists.

List I List II
A. Bacterial blight 1. Pseudomonas
B. Leaf spot 2. Fusarium
C. Damping off 3. Pythium
D. Wilt 4. Cercospora
  • A A B C D 1 2 3 4
  • B A B C D 4 3 2 1
  • C A B C D 1 4 3 2
  • D A B C D 2 3 4 1

Question - 4

Following are some of the major pests of the cotton. Which one of the following in not the pest of cotton?

  • A Cotton bollworm
  • B American bollworm
  • C Cotton whitefly
  • D Tingid bug

Question - 5

Match the List I (Insect/Pest) with List II (Crop) and select the correct answer using the codes given below the lists.

List I List II
A. Papilio demoleus 1. Black pepper
B. Diconocoris hewetti 2. Citrus
C. Earias vitella 3. Cabbage
D. Pieris rapae 4. Cotton
  • A A B C D 1 2 3 4
  • B A B C D 4 3 2 1
  • C A B C D 2 1 4 3
  • D A B C D 3 2 1 4

Question - 6

Insects have hard and chitinous exoskeleton with open circulatory system. They cast the skin at specific intervals. From the following, which hormone is responsible for casting of skin(ecdysis)?

  • A Exohormone
  • B Gonadotrophic hormone
  • C Thyroxide
  • D Ecodysone

Question - 7

consider the following statements

1. Egg parasitoids voraciously feed upon the larvaes of pests.

2. Trichogramma species is a moth egg parasite.

3. Cotesia rubecula is a larval parasitoid.

4. Exorista sp is a pupal parasitoid.

Which of the statement(s) is/are true?

  • A Only 1
  • B 2, 3 and 4
  • C 1, 3 and 4
  • D 1 and 4

Question - 8

Match the following lists and select the correct answer using the codes given below the lists.

List I 

(Insert/Pest)

List II

(Mouth Part)

A. Grasshopper 1. Rasping and sucking
B. Housefly 2. Chewing and bitting
C. Thirps 3. Sponging and sucking
D. Butterfly 4. Siphoning type
  • A A B C D 1 2 3 4
  • B A B C D 4 3 2 1
  • C A B C D 2 4 1 4
  • D A B C D 3 4 2 1

Question - 9

Camponotus pennsylvanicus and Camponotus gigas are the black ants and gaint forest ants.These on bite, secretes

  • A Oxalic acid
  • B formic acid
  • C tartaric acid
  • D acetic acid

Question - 10

Which of the following sucking pest belongs to the cash crop sugarcane?

  • A Sugarcane pyrilla
  • B Tea bug
  • C Spider mites
  • D Preying mantis