NEET UG Biology – 25 MCQ Quiz

1. Which kingdom does the organism *Amoeba proteus* belong to?

2. Which of the following organelles is involved in protein synthesis?

3. Mendel's law of segregation is best illustrated by which event during meiosis?

4. Which enzyme is responsible for unzipping the DNA double helix during replication?

5. Which hormone is secreted in response to low calcium levels in blood?

6. Stomata open in response to:

7. Which of the following is the site of photosynthesis in a plant cell?

8. In the human digestive system, bile is secreted by the:

9. Which part of the nephron is involved in selective reabsorption?

10. What is the basic unit of inheritance?

11. A dihybrid cross between two heterozygous parents results in what phenotypic ratio?

12. Which of the following is *not* an accessory gland in male reproductive system?

13. Which vitamin is synthesized by intestinal bacteria?

14. Which of the following diseases is transmitted by a mosquito?

15. What type of immunity is acquired through vaccination?

16. The main nitrogenous waste excreted by humans is:

17. The genetic material in HIV is:

18. Which of the following structures is *not* found in prokaryotes?

19. The process by which green plants convert CO₂ and water into glucose is called:

20. Which of the following organisms is *not* a part of the nitrogen cycle?

21. What is the product of translation in protein synthesis?

22. Who discovered the first antibiotic – Penicillin?

23. Which technique is used in DNA fingerprinting?

24. The plant hormone that inhibits growth is:

25. Which organ in humans regulates blood sugar by producing insulin?