Biology Previous Year Questions 2026 | UPPSC ACF/RFO

Biology - MOST IMPORTANT UPPSC ACF/RFO Previous Year Questions

Practice real questions from previous year exams of UPPSC ACF/RFO.

📘 Complex Permanent Tissue📚 Phloem and its components
Q1

Intraxylary phloem is found in:

🎯 UPPSC ACF/RFO Exam. 2015
📘 Evolution📚 General Facts
Q2

Arrange the following species according to their chronological order of evolution:

  1. Amphibians
  2. Fish
  3. Reptiles
  4. Birds

Select the correct answer using the codes given below-

🎯 UPPSC ACF/RFO (Pre) 2017
📘 Monera- Bacteria📚 General Facts
Q3

Conversion of milk into curd is done by which of the following bacteria?

🎯 UPPSC ACF/RFO (Mains) IInd 2018
📘 Monera- Bacteria📚 General Facts
Q4

Which of the following does not do nitrogen fixation?

🎯 UPPSC ACF/RFO Exam. 2015
📘 Fungi📚 General Facts
Q5

Assertion (A): Mycorrhizal association is an example of parasitism.
Reason (R): It is an association between root of plant and a fungus.

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📘 Nomenclature of Organisms📚 Misc
Q6

The binomial method of vegetative nomination was given by:

🎯 UPPSC ACF/RFO Exam. 2015
📘 Digestive System- II: Buccal Cavity and Oesophagus📚 Types of teeth- Homodont, Heterodont, etc.
Q7

Which of the following human teeth appears only in the permanent dentition?

🎯 UPPSC ACF/RFO Exam. 2015
📘 Circulatory System- I (Blood and its Cells)📚 Antigens and Antibodies
Q8

Antibodies are:

🎯 UPPSC ACF/RFO (Mains) IInd 2018
📘 Circulatory System- I (Blood and its Cells)📚 Blood- General Facts
Q9

What is the pH level of blood of a normal person?

🎯 UPPSC ACF/RFO Exam, 2013
📘 Central Nervous System📚 Fore brain- Hypothalamus
Q10

Body temperature is regulated by

🎯 UPPSC ACF/RFO (Pre) 2017
📘 Excretory System-I: General📚 Classification of Animals on the basis of Excretory products- Uricotelic, Ureotelic, Ammonotelic, Guanotelic
Q11

The primary nitrogenous waste product in human is-

🎯 UPPSC ACF/RFO Exam. 2015
📘 Endocrine Glands- Brain📚 Pituitary gland- General Facts
Q12

The smallest gland in the human body is?

🎯 UPPSC ACF/RFO Exam. 2013
📘 Endocrine System- Overview📚 Glands and hormones- General Facts
Q13

Which of the following statements about hormones is/are correct? 1. They are produced by the endocrine glands. 2. They are necessary for catalysing metabolic reactions within the human body.

🎯 UPPSC ACF/RFO (Mains) IInd 2018
📘 Macro-Nutrients: Carbohydrates📚 Monosaccharides- Glucose, Fructose, Galactose, etc.
Q14

Which of the following groups of diet provide maximum energy to human body?

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📘 Micro-Nutrients: Minerals📚 Macro-Nutrient Minerals
Q15

Which of the following is the richest source of calcium?

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📘 Hormone related Diseases📚 Misc
Q16

Which of the following pairs is not correctly matched?

🎯 UPPSC ACF/RFO (Mains) IInd 2018
📘 Diseases: Overview📚 Means of Spread of Infectious Diseases
Q17

Match List-I with List-II and select the correct answer using the code given below the lists:
List-I
A. Kala-azar
B. Sleeping-sickness
C. Dengue fever
D. Filariasis

List-II

  1. Tse-tse fly
  2. Culex mosquito
  3. Sand fly
  4. Aedes mosquito
🎯 UPPSC ACF/RFO (Pre) 2017
📘 Respiratory System- V (Respiratory Disorders)📚 Tuberculosis (TB)
Q18

BCG vaccine is used for the prevention of:

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📘 Bacterial Diseases📚 Misc
Q19

Which one of the following is an antibiotic drug?

🎯 UPPSC ACF/RFO (Mains) IInd 2020
📘 Viral Diseases📚 Dengue
Q20

The medical test used for dengue fever is:

🎯 UPPSC ACF/RFO (Mains) IInd 2018