Sexual reproduction in flowering plants

High importanceUsually 4 marks a paper · mostly long answers and MCQs · asked in 3 of the last papers

Notes are being written

The board questions below are real and complete — they come from the CBSE papers themselves. The written notes for this topic are still being prepared.

Board questions on this topic

6 from the CBSE papers we hold — the exact wording the board used.

2026MCQ·1 mark·Q2

If the part 'P' of the flower is removed, which of the following processes will not take place?

Figure printed with question 2 of the 2026 board paper
  1. (a) Formation of pollens
  2. (b) Formation of flower
  3. (c) Formation of fruit
  4. (d) Formation of seed

2025MCQ·1 mark·Q10

The correct/true statement(s) for a bisexual flower is/are : (i) They possess both stamen and pistil. (ii) They possess either stamen or pistil. (iii) They exhibit either self-pollination or cross-pollination. (iv) They cannot produce fruits on their own.

  1. (a) (i) only
  2. (b) (iv) only
  3. (c) (i) and (iii)
  4. (d) (i) and (iv)

2025Short answer·3 marks·Q30

(a) What are chromosomes ? (b) Explain in brief how stability of DNA content of a species is ensured in sexually reproducing organisms ?

2025Long answer·5 marks·Q35(b)

(i) Differentiate between self-pollination and cross-pollination. (ii) Identify A, B and C in the diagram given below (a diagram of a flower/pistil showing pollen germination and the ovule - see figure) and write one function of each.

Figure printed with question 35(b) of the 2025 board paper

2023Long answer·5 marks·Q35

(a) Name the parts of a bisexual flower that are not directly involved in reproduction. (b) Differentiate between self pollination and cross pollination. List any two significance of pollination. (c) What is the fate of ovules and ovary after fertilization in a flower?

2022Very short answer·2 marks·Q3

(a) Which of the following flowers will have higher possibility of self-pollination? Mustard, Papaya, Watermelon, Hibiscus. (b) List the two reproductive parts of a bisexual flower.