MCQs Biology-18 Posted on November 27, 2025December 3, 2025Author agropublishers 0 MCQs Biology-18 1. Hybrid vigor is most often observed in the __________ generation Parental F2 F1 F3 2. ————- is an older or alternative scientific name for mitochondria Condriome Chondriosomes Energysome Mitosome 3. Deficiency of vitamin D results in———– Night blindness Scurvy Rickets Pernicious anemia 4. The physical exchange of chromosome segments is called ————– Crossing over Segregation Independent assortment Mutation 5. Which of the following animals is a diploblastic? Hydra Fish Sponge Earthworm 6. The genome of viruses is composed of ________ RNA DNA Both DNA and RNA Protein 7. Which example describes a population? All plants in the field 20 students chosen randomly 100 plants chosen from a field 10 leaves measured from one tree 8. Transformation, in genetics, refers to the genetic alteration through ——– Protein denaturation RNA transcription Uptake of foreign DNA by bacteria Hybridization 9. DNA denaturation involves breaking ———- Sugar bonds Hydrogen bonds between bases Amino Bond Phosphodiester bonds 10. Nanomaterials typically have a size range of __________ more than 1000 nm 1–100 nm 100–1000 nm Less than 1 nm Loading … Question 1 of 10