PYQ Vault

Day 13: MH HSC Class 12 Biology

5 questions. Try each one first, then open its answer.

  1. Question 1

    Molecular Basis of Inheritance. Asked once: Mar 2024 (same type asked 2 times)

    Q. 15
    Give the different steps involved in formation of m-RNA from hn-RNA.

  2. Question 2

    Organisms and Populations. Asked once: Jul 2024 (same type asked 2 times)

    Q. 2(vii)
    Mention the type of association between sea anemone and clown fish.

  3. Question 3

    Respiration and Circulation. Asked once: Mar 2024 (same type asked 2 times)

    Q. 13
    Select and rewrite appropriate disorder of respiratory system with the given symptoms : [ sinusitis, emphysema, silicosis and asbestosis, laryngitis ] (a) Breakdown of alveoli, shortness of breath. (b) Inflammation of the sinuses, mucous discharge. (c) Inflammation of larynx, vocal cord, sore throat, hoarseness of voice, mucous build up and cough. (d) Inflammation of fibrosis, lung damage.

  4. Question 4

    Plant Growth and Mineral Nutrition. Asked once: Mar 2024 (same type asked 2 times)

    Q. 23
    Describe physiological effects and applications of ethylene.

  5. Question 5

    Biotechnology. Asked once: Jul 2025 (same type asked 4 times)

    Q. 1(x)
    Which genes are used for improvement of oil content and oil quality in plants?

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