Introduction to Pomology MCQs (Quiz 15) Posted on July 23, 2026Author agropublishers 0 1. Why are most commercial seedless bananas described as triploid rather than diploid or tetraploid? They have three sets of chromosomes, disrupting normal pairing in meiosis They have two sets of chromosomes, allowing perfect pairing in meiosis They have only one set of chromosomes, so they skip meiosis entirely They have four sets of chromosomes, which always pair correctly in meiosis 2. In citrus species, seeds are commonly used for ______________________ Raising rootstocks Commercial fruit production Air layering Micropropagation 3. Naphthalene acetic acid (NAA) belongs to which class of plant growth regulators? Growth retardants Synthetic auxins Synthetic Gibberellins Synthetic Cytokinins 4. The greatest disadvantage of seed propagation in perennial fruit crops is _________________________ Low germination Genetic variability and prolonged juvenile phase Poor nutrient uptake Poor root development 5. Biosynthesis of hormone ______________ is inhibited by paclobutrazol Gibberellin Cytokinin Auxin Ethylene 6. In table grape production, main purpose of applying gibberellic acid (GA3) shortly after berry set is __________________ To promote berry thinning by causing flower drop To increase berry size and improve cluster looseness To stimulate earlier coloration and ripening To induce uniform leaf fall before harvest 7. The greatest advantage of vegetative propagation is that it produces ______________________________ True-to-type plants Hybrid seedlings Disease-resistant plants Polyploid plants 8. Select correctly matched fruit crop–scientific name pair Cinnamon — Elaeis guineensis Arecanut — Fragaria chiloensis Oil palm — Borassus flabellifer Coconut — Cocos nucifera 9. Select correctly matched fruit crop–botanical family pair Gooseberry — Ericaceae Cranberry — Ericaceae Lingonberry — Rosaceae Blueberry — Rosaceae 10. Select correctly matched fruit crop–botanical family pair Guava — Anacardiaceae Banana— Rutaceae Cashew — Myrtaceae Litchi — Sapindaceae Loading … Question 1 of 10
