Selective Breeding
Selective breeding is when humans choose organisms with desirable features to breed, so those features appear in later generations.
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Selective breeding is when humans choose organisms with desirable features to breed, so those features appear in later generations.
- Used to produce high-yield crops
- Can reduce genetic variation
- Takes many generations
🧠 Quick quiz
Three questions. Score 2 or more to complete the topic.
What is Selective Breeding?
Within Biology, which covers cells, the human body, genetics, evolution, plants and ecosystems: the science of living things, this topic explains Selective Breeding. Biology topics show how living things work, from the cell up to whole ecosystems, with models you can explore step by step.
Check that you can explain Selective Breeding in your own words and give one example from everyday life. If you can do that, you have understood the core idea.
Understanding Selective Breeding helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.
Selective Breeding in detail
Selective breeding (artificial selection) is when humans choose parents with desirable characteristics, and breed from the best offspring over many generations. It has produced crops with high yield and disease resistance, cattle that give more milk and dogs with particular features.
The process is slow but can create major changes. A drawback is reduced genetic variation, as organisms become closely related (inbreeding), which can increase inherited diseases and make populations vulnerable to a new disease. Selective breeding differs from natural selection because humans, not the environment, decide which organisms breed.
How the interactive helps you understand Selective Breeding
Click a step, or use the Previous and Next buttons, to move through the sequence one stage at a time. Auto-play moves on for you.
Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of Selective Breeding.
Real-life uses and examples
- Structure a longer answer about Selective Breeding by moving from definition to example to consequence.
- Explain how Selective Breeding helps a living thing stay alive, using a plant or animal example.
- Connect Selective Breeding to health, food and medicine in everyday life.
Common mistakes to avoid
- Listing the steps of a process without saying how one step causes the next.
- Using everyday words, such as “energy” or “bad”, without their scientific meaning.
- Learning the definition without testing it. Use the quiz and the interactive to check that you can apply the idea.
Frequently asked questions about Selective Breeding
What is Selective Breeding?
Selective breeding is when humans choose organisms with desirable features to breed, so those features appear in later generations.
What are the most important points about Selective Breeding?
The main points are: Used to produce high-yield crops; Can reduce genetic variation; Takes many generations.
Why is Selective Breeding useful?
Understanding Selective Breeding helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.
How can I practise Selective Breeding?
Open the interactive at the top of this page and change the controls one at a time. Predict the result before each change, then take the three-question quiz. A score of two or more marks the topic as complete on this device.
Which topics are related to Selective Breeding?
Related topics in Biology include Ecosystems and Habitats, The Carbon Cycle, Decomposers and Decay.