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