Year 7 - Science
Heredity
Heredity and DNA
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit examines the transmission of genetic information through heredity, how scientific methods evolve with new evidence, the importance of publishing and peer review, and the Study of DNA, chromosomes, and genes while developing lab skills focusing on safety.
Lesson Summary
You will learn to describe what is meant by heredity and why offspring usually look similar to their parents.
Key Notes
- Reproduction (having offspring) is part of the life cycle of all organisms.
- When organisms reproduce they make offspring of the same kind (species resemblance).
- Heredity is the process of organisms passing on features to their offspring.
- Offspring inherit features from both parents, so they look similar to them and one another (family resemblance).
- Usually offspring vary and are not identical to their parents or one another (except for identical twins).
Vocabulary To Learn
- reproduction: Reproduction is the process of making offspring.
- offspring: The offspring of a living organism are the young produced following reproduction.
- inherit: Offspring inherit a combination of features from both their parents.
- heredity: Heredity is the process of passing features from individuals to offspring, through reproduction.
- variation: Differences between individuals of the same species are called variation.
Common Mistakes To Avoid
- Offspring (esp. daughters) inherit all features from mum; parents can control inherited features.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Reproduction (having offspring) is part of the life cycle of all organisms. When organisms reproduce they make offspring of the same kind (species resemblance).
2. Define this scientific word and use it in context. 'reproduction'
Reproduction is the process of making offspring. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Offspring (esp. daughters) inherit all features from mum; parents can control inherited features. Correction: Show examples of offspring inheriting features from both parents. Inherited features that are inherited in genetic material, not chosen.
More Lessons In This Unit
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