MCQs Entomology-17 Posted on July 20, 2025August 30, 2025Author agropublishers 0 1. __________ is used most commonly to sterilise insects in the laboratory CO 45 (Cobalt-45) CO 60 (Cobalt-60) CO 55 (Cobalt-55) CO 50 (Cobalt-50) 2. What is the primary goal of the Sterile Insect Technique (SIT)? Reduce pest populations through sterile male releases Enhance insect fertility for laboratory studies Genetically modify insects for disease resistance Increase insect populations for pollination 3. The pterothorax refers to ____________ Wing-bearing thoracic segments Leg-bearing segments Thorax + abdomen Head + thorax 4. The assemblage of all nematode population of an area is called_________________ Nematode population Nematode ecosystem Nematode habitat Nematode community 5. Chitin is a key structural component in which of the following insect structures? Hypodermis Basement membrane Eggshell Cuticle 6. Currently, genetically modified organisms (GMOs) include__________ Enhanced microbial pesticides, e.g., baculoviruses expressing scorpion toxin genes Production of vaccines Insect-resistant plants expressing the Bacillus thuringiensis (Bt) endotoxin gene Glyphosate (Roundup) resistant plants All of these 7. A honey extractor works on the principle of __________ for honey extraction Rotational force Centrifugal force Gravitational force Electrostatic force 8. A worker honey bee has _______ wax glands 6 4 8 12 9. ___________ is the most suitable trap crop for the Diamondback Moth (DBM) in cabbage Okra Castor Mustard Tomato 10. Which of the following are bee products? All of these Bee wax Bee venom Royal jelly Loading … Question 1 of 10