PYQ Vault

Day 5: MH HSC Class 12 Biology

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

  1. Question 1

    Inheritance and Variation. This type asked 2 times: Feb 2026, Jun 2026. This one: Jun 2026

    Q. 30
    (a) Write a note on Holandric genes. (b) Complete the following table:
    AB
    (i)Monosomy(1)_____
    (ii)_____(2)2n−22n-2
    (iii)Trisomy(3)_____
    (iv)_____(4)2n+22n+2
  2. Question 2

    Molecular Basis of Inheritance. This type asked 2 times: Mar 2024, Jun 2026. This one: Jun 2026

    Q. 31
    (a) What is DNA profiling? (b) Arrange the following steps of DNA profiling in correct sequence: (i) Selection of DNA probe (ii) Isolation of DNA (iii) Gel electrophoresis (iv) Hybridization (v) Southern blotting (vi) Restriction digestion
  3. Question 3

    Organisms and Populations. This type asked 2 times: Mar 2024, Jun 2026. This one: Jun 2026

    Q. 18
    Describe commensalism giving two examples.
  4. Question 4

    Plant Growth and Mineral Nutrition. This type asked 2 times: Jul 2025, Jun 2026. This one: Jun 2026

    Q. 21
    (a) Enlist any four mineral deficiency symptoms seen in plants. (b) Give the function of molybdenum as mineral nutrient.
  5. Question 5

    Plant Water Relation. This type asked 2 times: Jul 2024, Jun 2026. This one: Jun 2026

    Q. 1(iii)
    When food is translocated from phloem to pith, it is called _____ translocation.

    Tap an option to check your answer.