Science Ecosystems & Habitatsusually ages 12–13

Chromosomes, Genes & DNA

Describe the relationship between chromosomes, genes, and DNA in heredity, including the double helix structure of DNA and the historical roles of Watson, Crick, Franklin, and Wilkins

How to tell they’ve got it

Tick these off as you see them — no test required.

Explains the hierarchy: DNA → gene → chromosome → nucleus → cell
Describes what a gene is and what it codes for
States that human body cells contain 46 chromosomes in 23 pairs
Describes the contributions of Watson, Crick, Franklin, and Wilkins to the discovery of DNA structure

🖨 Print this page to keep the checklist — it prints beautifully.

Try this together

If your child was asked what DNA actually is and where it is in the body, could they explain the relationship between DNA, genes, and chromosomes — and say roughly how many chromosomes a human cell has?

Where this sits on the map

Stuck here? Check the skills it builds on first. Confident? Here’s what it unlocks.

Builds on

Cells Under the Microscopeages 11–12DNA is housed in the nucleus of cells — the cell as fundamental unit must be understood before studying what's inside the nucleus

Chromosomes, Genes & DNAthis skill · ages 12–13

Unlocks

DNA & Genesages 12–14DNA structure and replication depends on chromosomes and Mendelian inheritance

Genetic Mutationages 12–14Mutation is defined as a change to the DNA sequence — the DNA model must be understood first

Variation in Speciesages 12–13Explaining genetic vs environmental causes of variation requires first knowing what genes and chromosomes are

Predicting Inherited Traitsages 13–14Punnett squares and allele inheritance require a firm understanding of genes and chromosomes

Grouping Species Using DNAages 13–14KS3 chromosomes and DNA are the molecular basis for the sequence data used in building phylogenetic trees with molecular clocks

Megafauna Extinction & De-Extinctionages 13–14Understanding genetic bottlenecks during mass extinctions depends on heredity and chromosomes concepts

solid = must come firstdashed = helps

Curriculum alignment

Candidate matches to official curriculum codes — machine-suggested, unreviewed (v0.1).

This skill sits beyond Year 6 in the Australian Curriculum, so no F–6 code is matched. It also sits beyond the NSW K–6 syllabuses. It also sits beyond Level 6 in the Victorian Curriculum.

Nearby on the map

Biodiversity & Resilienceages 12–14 Evidence for Evolutionages 12–14 Extinction & Rapid Changeages 12–14 Genetic Mutationages 12–14

All Ecosystems & Habitats skills →