Important MCQs for Chapter 1: Reproduction in Organisms

For Class 12 Biology Chapter 1 (Reproduction in Organisms), here are some important MCQs that are highly relevant for NEET 2025 and board exams:

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Important MCQs for Chapter 1: Reproduction in Organisms

1. **Which of the following is a mode of asexual reproduction?**

   - a) Binary fission  

   - b) Budding  

   - c) Sporulation  

   - d) All of the above  

   **Answer:** d) All of the above  

2. **In which organism does binary fission occur?**  

   - a) Amoeba  

   - b) Hydra  

   - c) Yeast  

   - d) Spirogyra  

   **Answer:** a) Amoeba  

3. **Which of the following is an example of vegetative propagation?**  

   - a) Rhizome in ginger  

   - b) Bulb in onion  

   - c) Tuber in potato  

   - d) All of the above  

   **Answer:** d) All of the above  

4. **The term "clone" refers to:**  

   - a) Genetically similar individuals  

   - b) Genetically different individuals  

   - c) Individuals produced by sexual reproduction  

   - d) None of the above  

   **Answer:** a) Genetically similar individuals  

5. **Which of the following is a unisexual organism?**  

   - a) Earthworm  

   - b) Cockroach  

   - c) Leech  

   - d) Both b and c  

   **Answer:** d) Both b and c  

6. **The life span of a parrot is approximately:**  

   - a) 20 years  

   - b) 140 years  

   - c) 60 years  

   - d) 100 years  

   **Answer:** b) 140 years  

7. **Which of the following organisms exhibits external fertilization?**  

   - a) Frogs  

   - b) Birds  

   - c) Reptiles  

   - d) Mammals  

   **Answer:** a) Frogs  

8. **The process of formation of gametes is called:**  

   - a) Gametogenesis  

   - b) Fertilization  

   - c) Embryogenesis  

   - d) None of the above  

   **Answer:** a) Gametogenesis  

9. **Which of the following is NOT a part of asexual reproduction?**  

   - a) Fragmentation  

   - b) Pollination  

   - c) Budding  

   - d) Binary fission  

   **Answer:** b) Pollination  

10. **The offspring produced by asexual reproduction are:**  

    - a) Genetically identical to the parent  

    - b) Genetically different from the parent  

    - c) Produced by meiosis  

    - d) None of the above  

    **Answer:** a) Genetically identical to the parent  

11. **Which of the following is an example of a bisexual organism?**  

    - a) Earthworm  

    - b) Cockroach  

    - c) Frog  

    - d) Human  

    **Answer:** a) Earthworm  

12. **The process of regeneration is observed in:**  

    - a) Planaria  

    - b) Hydra  

    - c) Starfish  

    - d) All of the above  

    **Answer:** d) All of the above  

13. **Which of the following is NOT a vegetative propagule?**  

    - a) Rhizome  

    - b) Bulbil  

    - c) Zygote  

    - d) Tuber  

    **Answer:** c) Zygote  

14. **The term "juvenile phase" refers to:**  

    - a) The period of growth before an organism can reproduce  

    - b) The period of active reproduction  

    - c) The period of senescence  

    - d) None of the above  

    **Answer:** a) The period of growth before an organism can reproduce  

15. **Which of the following organisms exhibits internal fertilization?**  

    - a) Birds  

    - b) Frogs  

    - c) Fish  

    - d) Both a and b  

    **Answer:** a) Birds  

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### **Tips for Preparation:**

1. Focus on understanding the concepts of asexual and sexual reproduction.

2. Memorize examples of organisms and their modes of reproduction.

3. Practice diagrams related to vegetative propagation and life cycles.

4. Revise definitions and key terms like gametogenesis, fertilization, and regeneration.

Good luck with your NEET 2025 and board exam preparations!