MCQs Botany [33] Posted on October 21, 2025Author agropublishers 0 1. What is the outer layer of a pollen grain called? Nucellus Exine Intine Cytoplasm 2. Which of the following is a well-known food item primarily made from potatoes? French fries Tacos Sushi Kimchi 3. What is the primary function of pollen? To facilitate fertilization To protect the embryo To produce sperm cells To produce female gametes 4. The ability of an organism to produce different phenotypes (physical traits) in response to different environmental conditions is called ____________ Phenotypic plasticity Dependence on external chemicals Lack of adaptability Inability to sense the environment 5. What is the process of mechanically scratching the seed coat to improve water absorption called ________ After-ripening Dormancy Stratification Scarification 6. Which of the following correctly represents the two major components of bark in woody stems? Xylem and phloem Cortex and epidermis Phloem and periderm Pith and vascular cambium 7. Nanomaterials typically have a size range of __________. More than 1000 nm Less than 1 nm 100–1000 nm 1–100 nm 8. “Off-type” in seed certification specifically means __________ Damaged or discolored seeds found in a harvested lot Plants that deviate from the standard morphological characteristics of the certified variety Plants of a different species growing in the seed field Weeds that pose a risk to the crop 9. The primary purpose of the Svalbard Global Seed Vault is to ____________ Develop new crop varieties Facilitate international commercial seed trade Research genetically modified crops Safeguard global crop diversity by storing duplicate seed samples 10. Which part of the onion plant is commonly used in cooking? Leaf Bulb Root Stem Loading …
