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A male patient… (Class 12 Biology SQP 2026-27, Q2)

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BiologyCBSE Class 12 · Sample paper, session 2026-27 · 1 mark · MCQ

CBSE Class 12 Biology sample paper 2026-27: question 2

From the official CBSE sample question paper for 2026-27, section A, question 2, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q2 · 1 mark · MCQHuman Reproduction

A male patient undergoes a medical procedure where a small section of the vas deferens is cut and tied at both ends. Which of the following effects is the intended and direct result of this procedure?

  1. (A)Blockage of sperm transport into the ejaculatory duct and urethra.
  2. (B)Inhibition of testosterone production by the testes.
  3. (C)Suppression of the formation of seminal plasma by accessory glands.
  4. (D)Prevention of spermatogenesis in the seminiferous tubules.

Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2026-27.

Hints

Open one hint at a time and try again before the next.

Hint 1

Name this procedure first.

Hint 2

The vas deferens is only a duct, so think about what a cut duct can no longer do.

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. The procedure described is vasectomy, a surgical method of male contraception.

  2. Cutting and tying the vas deferens blocks the passage of sperms from the epididymis to the ejaculatory duct and urethra. Testosterone production, spermatogenesis and seminal plasma secretion continue normally. Option (A).

    1 mark

Answer: (A) Blockage of sperm transport into the ejaculatory duct and urethra

Where the marks are

  • Recognises vasectomy blocks sperm transport only (1 mark)

Revise the chapter

  • Chapter: Human Reproduction (notes, formulas, where marks are lost and every past question)
Practise this chapterBoard-style questions from Human Reproduction, one at a time, marked against the answer key and marking points.Back to the full paperSample paper 2026-27: every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.