Genetics Games — Predict, Watch, Understand
These free genetics games let a child predict how living things pass on their features, watch it happen, and see why. Heredity is invisible — a code inside cells, traits from two parents, hidden recessive versions — so guessing first, then watching, is how it makes sense. No ads, no sign-up.
Predict what DNA is — the twisted-ladder code inside cells that tells a body how to grow.
Predict inherited or learned — eye color is passed down from parents; a scar is not.
Predict which trait shows — a dominant version wins unless two recessive copies meet.
Predict how they nest — a gene is part of a chromosome, bundled inside the cell’s nucleus.
Predict the effect — a change in the DNA code can be helpful, harmful, or make no difference.
Predict the variety — mixing two parents’ genes means no two offspring are exactly alike.
What kids learn
Living things pass on instructions. DNA is the code, carried on genes and chromosomes inside cells. Children inherit traits from both parents, where dominant versions win over recessive ones. A mutation is a change in the code, and mixing two parents’ genes gives the variation that makes every individual unique. Each game isolates one of these ideas.
More science games
Explore the full set on the science games hub, including evolution games and microbiology games.
Common questions
What is DNA?
DNA is the set of instructions for building and running a living thing. It sits inside the nucleus of nearly every cell, shaped like a twisted ladder called a double helix, and the rungs of that ladder spell out the code that decides traits like eye color and height.
What does it mean to inherit a trait?
Inherited traits are passed from parents to children through genes — things like eye color, hair type and dimples. A child is a mix of both parents. Other features are not inherited: a scar, a haircut, or being able to speak a language are learned or acquired during life, not passed down in DNA.
What are dominant and recessive traits?
Genes often come in versions. A dominant version shows up whenever it is present, while a recessive version is hidden unless a child inherits two recessive copies — one from each parent. That is why two brown-eyed parents can sometimes have a blue-eyed child.
What age are these genetics games for?
Roughly ages 7–13 (grades 2–8), and each game shows its grade band. Inherited traits suits grades 2–5; trait variation reaches grades 3–6; DNA and dominant/recessive reach grades 4–7; genes/chromosomes and mutations are grades 5–8. The predict-and-watch format needs no reading-heavy setup.