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Transgenic animals have their… (Class 12 Biology 2026, Q10)

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BiologyCBSE Class 12 · Board exam 2026, set 57/5/1 · 1 mark · MCQ

CBSE Class 12 Biology 2026: question 10

Set in the CBSE Class 12 board exam of 2026, paper 57/5/1, section A, question 10, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q10 · 1 mark · MCQBiotechnology and its Applications

Transgenic animals have their genetic material manipulated. Select the correct option in reference to transgenic animals.

  1. (A)Foreign DNA and RNA are present in their cells.
  2. (B)Foreign RNA is present in all of their cells.
  3. (C)Foreign DNA is present in all of its cells.
  4. (D)Foreign RNA is present in some of its cells.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2026 board paper, set 57/5/1.

Hints

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

Hint 1

What is actually introduced into a transgenic animal: DNA or RNA?

Hint 2

The gene is introduced at the embryo stage. Which cells will inherit it?

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. A transgenic animal carries a foreign gene (DNA) that has been introduced and expressed in it.

    ½ mark

  2. The foreign DNA is introduced at an early embryonic stage, so it is present in all of the animal's cells. The answer is (C).

    ½ mark

Answer: (C)

Where the marks are

  • Chooses (C) (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Biotechnology and its Applications, one at a time, marked against the answer key and marking points.Back to the full paper2026 board paper, set 57/5/1: 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.