MCQs Zoology-23 Posted on 2025-11-122025-12-03Author admin 0 Table of Contents Toggle MCQs Zoology-23MCQs Zoology-23 MCQs Zoology-23 1. Which of the following environments can serve as a natural habitat for free-living amoebae? Damp terrestrial soil and leaf litter Freshwater bodies like lakes and ponds All of these Marine and brackish water sediments 2. What type of cell organization is characteristic of protists? Eukaryotic None of these Both Prokaryotic & Eukaryotic Prokaryotic 3. In mitosis, a single parent cell divides to produce ————- Four sperm or egg cells Four genetically unique daughter cells Two genetically identical daughter cells Two gametes 4. Genetic load increases when __________ Deleterious mutations are efficiently removed Mutation rate exceeds the selection rate Heterosis occurs Gene flow increases 5. Hybrid vigor (heterosis) results when __________ Offspring have higher fitness than parents due to heterozygosity Homozygous alleles increase Deleterious alleles accumulate Mutation rate decreases 6. Which of the following is NOT a characteristic of metameric segmentation? Presence of a notochord Repeated internal structures External visibility of segments Serial repetition of organs 7. Nitrogenous base _________ is NOT found in DNA Thymine Adenine Guanine Uracil 8. Which enzyme is responsible for synthesizing a new strand of DNA during replication? DNA Ligase Helicase RNA Polymerase DNA Polymerase 9. ————— of the following is not a lymphocyte Monocyte Platelet T cell B cell 10. ___________ is the primary function of the enteron Excretion Circulation Respiration Digestion Loading … MCQs Zoology-23
