Inheritance, Variation and Evolution

Simple explanation

DNA is a polymer that carries genetic information.

Analogy or example

Human body cells usually contain 23 pairs of chromosomes.

Misconception trap

A gene and a chromosome are exactly the same thing.

Real-world relevance

DNA and genes helps explain health, ecosystems, medicine and how living systems stay alive.

Vocabulary check

genes, polymer, carries, genetic, information

Simple explanation

Alleles are different versions of the same gene.

Analogy or example

Two heterozygous parents can produce a child with a recessive phenotype.

Misconception trap

A dominant allele is always more common in a population.

Real-world relevance

Genetic crosses helps explain health, ecosystems, medicine and how living systems stay alive.

Vocabulary check

genetic, crosses, alleles, different, versions

Simple explanation

Variation exists within populations.

Analogy or example

Bacteria with antibiotic resistance survive and reproduce when exposed to the antibiotic.

Misconception trap

Individuals evolve during their lifetime.

Real-world relevance

Evolution and selection helps explain health, ecosystems, medicine and how living systems stay alive.

Vocabulary check

evolution, selection, variation, exists, within

Simple explanation

Sex determination and reproduction sits inside Inheritance, Variation and Evolution, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, name the key biological part and explain how it helps the organism or system work.

Misconception trap

Sex determination and reproduction can be confused with nearby Inheritance, Variation and Evolution ideas.

Real-world relevance

Sex determination and reproduction helps explain health, ecosystems, medicine and how living systems stay alive.

Vocabulary check

determination, reproduction, sits, inside, inheritance

Simple explanation

Variation and mutation sits inside Inheritance, Variation and Evolution, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, name the key biological part and explain how it helps the organism or system work.

Misconception trap

Variation and mutation can be confused with nearby Inheritance, Variation and Evolution ideas.

Real-world relevance

Variation and mutation helps explain health, ecosystems, medicine and how living systems stay alive.

Vocabulary check

variation, mutation, sits, inside, inheritance

Simple explanation

Selective breeding and genetic engineering sits inside Inheritance, Variation and Evolution, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, name the key biological part and explain how it helps the organism or system work.

Misconception trap

Selective breeding and genetic engineering can be confused with nearby Inheritance, Variation and Evolution ideas.

Real-world relevance

Selective breeding and genetic engineering helps explain health, ecosystems, medicine and how living systems stay alive.

Vocabulary check

selective, breeding, genetic, engineering, sits

Simple explanation

Classification and cloning [Triple Only] sits inside Inheritance, Variation and Evolution, so learn the core definition and the exam example that usually comes with it.

Analogy or example

For a longer answer, name the key biological part and explain how it helps the organism or system work.

Misconception trap

Classification and cloning [Triple Only] can be confused with nearby Inheritance, Variation and Evolution ideas.

Real-world relevance

Classification and cloning [Triple Only] helps explain health, ecosystems, medicine and how living systems stay alive.

Vocabulary check

classification, cloning, triple, only, sits