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Biology MCQs: Frequently Asked Multiple Choice Questions, Explanation

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Anjali Mishra Content Writer-SME

Content Writer-SME

NEET MCQ on Biology covers all the chapters of CBSE class 11 and class 12 biology books. We have provided the multiple choice questions (mcq) links for all the updated chapters of class 11 and 12 through which students can easily check the topics explore as per the weightage in their respective exams. There are many branches of biology but the main focus area of biology class 11 and 12 books are: Microbiology, Anatomy & Physiology, Biotechnology, Genetics, Botany, Zoology, Molecular Biology, Ecology, Biochemistry, and Developmental Biology. 

Branches of Biology

Main Branches of Biology

This article covers  multiple choice questions for all the updated topics of biology subject as per 2023-2024 (Class 11th to 12th).

Table of Contents

  1. Class 12 Biology MCQs
  2. Class 11 Biology MCQs
  3. Biology Related Links and Important Study Guides

Class 12 Biology Multiple Choice Questions

Class 12 Biology MCQs include several important concepts like Reproduction, Evolution, Food Production, Inheritance, Biotechnology, Ecosystem, biodiversity, etc. 

Important MCQs Class 12 Biology

  1. MCQ on Environmental issues
  2. MCQ on vitamins and minerals
  3. MCQ on Fossils
  4. MCQ on animal physiology
  5. MCQ on immunity
  6. MCQ on Microbes in human welfare
  7. MCQ on Biotechnology
  8. MCQ on Genetics
  9. MCQ on carbohydrates
  10. MCQ on infectious diseases
  11. MCQ on Microbiology
  12. MCQ on Digestion and absorption
  13. MCQ on Histology
  14. MCQ on chlorofluorocarbons
  15. MCQ on Molecular basis of inheritance
  16. MCQ on Reproductive health
  17. MCQ on Human health and disease
  18. MCQ on chromosomal basis of inheritance
  19. MCQ on ecology
  20. MCQ  on Organisms and populations
  21. MCQ on Floral formula
  22. MCQ on Biodiversity and Conservation
  23. MCQ on Chromosomes
  24. MCQ on PCR
  25. MCQ on Reproduction in Flowering Plants
  26. MCQ on Chromosomes
  27. Principles of inheritance and Variation MCQ
  28. Sexual Reproduction in Flowering Plants
  29. Asexual Reproduction
  30. Binary Fission
  31. Sporulation
  32. Budding
  33. Gemmule Formation
  34. Fragmentation
  35. Vegetative Propagation in Plants
  36. Flower Structure
  37. Pollination
  38. Double Fertilization
  39. Apomixis
  40. Parthenocarpy
  41. MCQ on Principles of inheritance and Variation

Class 11 Biology Multiple Choice Questions

Important topics covered in Class 11 Biology MCQs include The Living World, Biological Classification, Plant Kingdom, Animal Kingdom, Morphology of Flowering Plants, Anatomy of Flowering Plants, Structural Organisation in Animals, among others. There are a total of 22 Chapters included in Class 11 Biology.

Important MCQs Class 11 Biology

  1. MCQ on Mollusca
  2. MCQ on Animal Morphology
  3. MCQ on Biological Classification
  4. MCQ on Biomolecules
  5. MCQ on Body Fluids And Circulation
  6. MCQ on Breathing And Exchange Of Gases
  7. MCQ on Cell Biology
  8. MCQ on Cell Cycle And Cell Division
  9. MCQ on Excretory Products And Their Elimination 
  10. MCQ on Food Microbiology
  11. MCQ on Locomotion And Movement 
  12. MCQ on Photosynthesis
  13. MCQs On Plant Kingdom
  14. MCQ on Mineral Nutrition
  15. MCQ on Molecular Biology
  16. MCQ on Neural Control And Coordination 
  17. MCQ on Plant Growth And Development 
  18. MCQ on Plant Morphology 
  19. MCQ on Respiration In Plants 
  20. MCQ on Structural Organisation In Animals 
  21. MCQ on Transport In Plants
  22. MCQ on Human Physiology
  23. MCQs on Respiratory System
  24. MCQ on Morphology of Flowering Plants
  25. MCQ on Plant Tissue Culture 
  26. MCQ on Living World 
  27. MCQ on Cell Signaling
  28. MCQ on Erythropoietin

NEET is a national eligibilty cum entrance test conducted every year for the admission to medical colleges. The syllabus for exam is categorized into three main subjects: Physics, Chemistry, and Biology. The NEET exam is of 3 hours and contain 180 questions each of 4 marks. Biology is the most scoring subject among all three. Students who prepare smartly and focus on main chapters of biology and practice mcq on biology books can score good marks. 

In biology, students study various life processes and learn how different organisms meet the challenges of living in their environment. Major biological concepts for student focus include the relationship between structure and function and change over time. Also, students’ experience in biology supports their developing environmental literacy. 

CBSE CLASS XII Related Questions

  • 1.

    Student to attempt either option (A) or (B).
    (A) 
    (i) Describe the process of megasporogenesis in an angiosperm. 
    (ii) Draw a diagram of a mature embryo sac of the angiosperm. Label its any four parts. 
    OR
    (B) The reproductive cycle in the female primates is called menstrual cycle. The first menstruation begins at puberty. 
    Answer the following questions: 
    (i) Name the four phases of menstrual cycle in a proper sequence. 
    (ii) How long does the menstrual phase last in a menstrual cycle? 
    (iii) When and why hormones estrogen and progesterone reach their peak levels respectively, in the menstrual cycle? 
    (iv) Give the significance of LH surge.

        View Solution

      • 2.

        Flowering plants with hermaphrodite flowers have developed many reproductive strategies to ensure cross-pollination. Study the given outbreeding devices adopted by certain flowering plants and answer the questions that follow.

        Note : All plants belong to the same species. No pollen tube growth/inhibition of pollen germination on stigma. Pollen germination on stigma.

        • [(a)] Name and define the outbreeding device described in the above table.
        • [(b)] Explain what would have been the disadvantage to the plant in the absence of the given strategy.

            View Solution

          • 3.

            Student to attempt either option-(A) or (B):
            (A) Write the features a molecule should have to act as a genetic material. In the light of the above features, evaluate and justify the suitability of the molecule that is preferred as an ideal genetic material. 
            OR 
            (B) Differentiate between the following:

            • [(i)] Polygenic Inheritance and Pleiotropy
            • [(ii)] Dominance, Codominance and Incomplete dominance

                View Solution

              • 4.
                Mention the number of chromosomes at each stage. Correlate the life phases of the individual with the stages of the process.

                    View Solution

                  • 5.
                    Student to attempt either option (A) or (B):
                    (A) Write two features of an ideal contraceptive. Explain any one natural contraceptive method that makes the chances of conception almost nil.
                    (B) Explain GIFT and ICSI.

                        View Solution

                      • 6.

                        Study the given molecular structure of double-stranded polynucleotide chain of DNA and answer the questions that follow.

                        (a) How many phosphodiester bonds are present in the given double-stranded polynucleotide chain? 
                        (b) How many base pairs are there in each helical turn of double helix structure of DNA? Also write the distance between a base pair in a helix. 
                        (c) In addition to H-bonds, what confers additional stability to the helical structure of DNA?

                            View Solution
                          View All
                          CBSE CLASS XII Previous Year Papers
                          Biology Preparation Guides
                          Henle’s Loop: Structure, Components, and Functions
                          Stages of Gamete Development
                          Differences and Comparison Articles in Biology
                          Biology NCERT Solutions
                          Galactose Formula: Properties, Structure, and Uses
                          Bed Bug Life Cycle
                          Biology: Branches, Concepts, Notes & NCERT Solutions
                          NCERT Solutions for Class 6 to 12: Download Free NCERT Solutions PDFs

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