NEET UG (Practice Series) Biology Most Repeated Questions

NEET is a big exam for students who want to study medicine in India. The Biology part is key because it has 90 questions out of 180. Many students look for the most repeated questions to help with their study. These question not only strengthens the subject knowledge, but it also provide an idea about the types of question which might come in the exam. Check here, the NEET Biology most repeated questions along with experts tips and advise for exam preparation.

Most Repeated Questions In NEET

In the NEET UG exam, some questions show up in similar ways each year. They test basic ideas. These come from topics like Ecology and Biomolecules. Here are examples from past papers:

• What is the unit of productivity in an ecosystem? Answer: (KCal m⁻²)yr⁻¹
• Which enzyme has ‘Haem’ as the prosthetic group? Answer: Catalase
• Histones are rich in which amino acids? Answer: Lysine & Arginine

NEET Biology Repeated Questions

Biology in NEET UG covers topics from Class 11 and 12. Questions often come from chapters like Human Physiology, Genetics, and Ecology. Knowing repeated questions helps the students focus on what matters. You can score better by practising them.

Most Repeated Questions In NEET Biology PDF

Here are NEET Questions With Answers Biology provided in text as well as in PDF format. The top 10 most repeated questions in NEET UG are mentioned here along with other important ones. Either solve them while reading here or download the PDF from below:

Question 1. Which of the following microbes is NOT involved in the preparation of household products?
A. Aspergillus niger
B. Lactobacillus
C. Trichoderma polysporum
D. Saccharomyces cerevisiae
E. Propionibacterium sharmanii
Choose the correct answer from the options given below:
(1) A and B only 

(2) A and C only 

(3) C and D only 

(4) C and E only

Question 2. Match List-I with List-II.

Choose the option with all correct matches:
(1) A-III, B-IV, C-II, D-I
(2) A-III, B-I, C-II, D-IV
(3) A-I, B-II, C-IV, D-III
(4) A-I, B-IV, C-III, D-II

Question 3. Which chromosome in the human genome has the highest number of genes?
(1) Chromosome X 

(2) Chromosome Y 

(3) Chromosome 1 

(4) Chromosome 10

Question 4. Match List-I with List-II.

Question 5. Streptokinase produced by bacterium Streptococcus is used for:
(1) Curd production 

(2) Ethanol production 

(3) Liver disease treatment 

(4) Removing clots from blood vessels

Question 6. The complex II of mitochondrial electron transport chain is also known as:
(1) Cytochrome bc1 

(2) Succinate dehydrogenase 

(3) Cytochrome c oxidase 

(4) NADH dehydrogenase

Question 7. Epiphytes that are growing on a mango branch is an example of which of the following?
(1) Commensalism 

(2) Mutualism 

(3) Predation 

(4) Amensalism

Question 8. Role of the water vascular system in Echinoderms is:
A. Respiration and Locomotion
B. Excretion and Locomotion
C. Capture and transport of food
D. Digestion and Respiration
E. Digestion and Excretion

Choose the correct answer from the options given below:
(1) A and B only 

(2) A and C only 

(3) B and C only 

(4) B, D and E only

Question 9. The protein portion of an enzyme is called:
(1) Cofactor 

(2) Coenzyme 

(3) Apoenzyme 

(4) Prosthetic group

Question 10. In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called: 

(1) Coleoptile

(2) Coleorhiza 

(3) Integument 

(4) Aleurone layer

Question 11. Which of the following is an example of non-distilled alcoholic beverage produced by yeast? 

(1) Whisky 

(2) Brandy 

(3) Beer 

(4) Rum

Question 12. Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population? 

(1) dN/dt = r (K - N / K) 

(2) dN/dt = rN (K - N / K) 

(3) dN/dt = rN (N - K / N) 

(4) dN/dt = N (r - K / K)

Question 13. Which of the following is the unit of productivity of an ecosystem? 

(1) gm² 

(2) KCal m⁻² 

(3) KCal m⁻³ 

(4) (KCal m⁻²)yr⁻¹

Question 14. Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin? 

(1) Bacterium 

(2) Yeast 

(3) Virus 

(4) Phage

Question 15. Match List I with List II.

Choose the option with all correct matches. 

(1) A-III, B-IV, C-II, D-I 

(2) A-III, B-II, C-IV, D-I 

(3) A-III, B-II, C-I, D-IV 

(4) A-II, B-III, C-I, D-IV

Question 16. Which one of the following enzymes contains ‘Haem’ as the prosthetic group? 

(1) RuBisCo 

(2) Carbonic anhydrase 

(3) Succinate dehydrogenase 

(4) Catalase

Question 17. Which of following organisms cannot fix nitrogen? 

A. Azotobacter B. Oscillatoria C. Anabaena D. Volvox E. Nostoc 

Choose the correct answer from the options given below: 

(1) A only 

(2) D only 

(3) B only 

(4) E only

Question 18. Silencing of specific mRNA is possible via RNAi because of - 

(1) Complementary dsRNA 

(2) Inhibitory ssRNA 

(3) Complementary tRNA 

(4) Non-complementary ssRNA

Question 19. Histones are enriched with - 

(1) Lysine & Arginine 

(2) Leucine & Lysine 

(3) Phenylalanine & Leucine 

(4) Phenylalanine & Arginine

Question 20. Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution. 

(1) Analogy, convergent 

(2) Homology, divergent 

(3) Homology, convergent 

(4) Analogy, divergent

Do Questions Repeat In NEET?

Yes, questions repeat in NEET but not exactly the same. Concepts and ideas come back in new forms. For example, DNA structure questions appear often but with different words. This happens because the exam tests core knowledge. Past papers show 10-20% of questions are like old ones.

NEET UG Sample Papers

How Many Questions Repeated In NEET?

About 15-25 questions in Biology are similar to past years. This is 20-30% of the Biology section. Numbers change each year, but topics like Cell Biology repeat a lot. Check NEET UG Previous Year Papers to see the trend.

Top Topics for Repeated Questions in NEET Biology

As compared to others, some biology topics have more repeated questions. It would be better to focus on these:

• Human Physiology: Breathing, Digestion
• Genetics: Mendel’s Laws, DNA Replication
• Ecology: Ecosystems, Biodiversity

The table below shows the topics-wise weightage for major Biology topics. Check the NEET Biology Syllabus to identify their unit/chapter:

How to Use NEET UG Repeated Questions for Preparation

Having the seat of Biology's most important questions is not enough, students need to have a proper plan for utilising them. Follow a few suggestions mentioned below a better preparation outcome:

• Practice NEET UG repeated questions daily
• Download PDF and solve 20 questions a day.
• Check answers and note mistakes.
• Revise weak topics.

Tips to Score High in NEET Biology

Solving most repeated questions is not the only way to do well. There are multiple factors which will improve your performance in the NEET UG exam:

• Read NCERT books fully.
• Solve mock tests weekly.
• Focus on diagrams for Botany.
• Revise with flashcards.

Download PrepMe247 App for more such content and expert advice. You can have easy access to NEET Mock Test Series, through this application.