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Selective breeding (artificial selection)
Practice Questions

20 CIE IGCSE Biology questions on Selective breeding (artificial selection), each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Selective breeding (artificial selection)

Question 1 · 1 mark · Difficulty 1/3

Which term describes the process by which humans choose organisms with desirable characteristics and breed them together over many generations?

  1. natural selection
  2. selective breeding
  3. genetic engineering
  4. mutation
Show answer & explanation
✓ Answer: Bselective breeding
Award 1 mark for identifying the correct term. A is incorrect because natural selection occurs without human intervention. C is incorrect because genetic engineering involves direct modification of genes in a laboratory. D is incorrect because mutation is a random change in DNA, not a controlled breeding process.
Question 2 · 1 mark · Difficulty 2/3

A farmer in Kenya wants to develop a breed of maize that is resistant to drought. She selects plants that survive longest without water and breeds them together. After several generations, what will be the most likely outcome?

  1. all plants will be completely resistant to drought
  2. the proportion of plants with drought resistance will increase
  3. the plants will lose all other beneficial characteristics
  4. the genetic variation will increase in the population
Show answer & explanation
✓ Answer: Bthe proportion of plants with drought resistance will increase
Award 1 mark for recognising that selective breeding gradually increases the frequency of desired alleles. A is incorrect because complete resistance is unlikely and other environmental factors remain important. C is incorrect because other characteristics can be maintained if they do not conflict with drought resistance. D is incorrect because selective breeding reduces genetic variation.
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CIE IGCSE Biology: Selective breeding (artificial selection) FAQ

How many CIE IGCSE Biology questions on Selective breeding (artificial selection) are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Selective breeding (artificial selection) for CIE IGCSE Biology, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Biology?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Selective breeding (artificial selection) practice with other Biology topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Selective breeding (artificial selection) questions aligned to the official CIE IGCSE Biology syllabus?
Every question is written against the published CIE IGCSE Biology specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Selective breeding (artificial selection) typically tested on CIE IGCSE Biology papers?
Selective breeding (artificial selection) appears across multiple question types on real CIE IGCSE Biology papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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