# Tony Crayfish Genetics Primer — Explore genetics by experiment

> Explore genetics by experiment (iPhone/iPad app by MARC PILON.)

- Source: https://appshunter.io/ios/app/tony-crayfish-genetics-primer/id6822363162 (this page in markdown: same URL + `.md`)
- Developer: [MARC PILON](https://appshunter.io/developer/6816353937)
- Category: Education, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English
- Released: 2026-10-16
- Data updated: 2026-10-24

## What is Tony Crayfish Genetics Primer?

Discover genetics by changing the experiment.

Cross pea plants, reveal a Punnett square, map linked genes and watch populations evolve. Tony Crayfish Genetics Primer connects familiar observations to the genetic explanations behind them through illustrations, interactive simulations and measured human variation data.

EXPLORE TWELVE LABORATORIES
- Mendelian genetics: segregation, independent assortment and expected versus observed offspring.
- Beyond Mendel: incomplete dominance, codominance, environmental effects, penetrance, maternal effects and X-linked inheritance.
- Genetic mapping: two-point and three-point crosses, recombination and centimorgans.
- Epistasis: how interactions between genes change visible traits.
- Quantitative genetics: many-gene traits, sources of variation, heritability and parent-offspring or twin comparisons.
- Population genetics: Hardy-Weinberg proportions, drift, migration, selection and human genetic diversity.
- Inbreeding and relatedness: traditional pedigrees, shared ancestors and the inbreeding coefficient.
- GWAS: association signals, sample size, multiple testing and population confounding.
- Polygenic scores: build a score and explore why predictions can transfer poorly between populations.
- Coalescence: trace physical gene copies backward to shared ancestors.
- Effective population size: connect breeding patterns, bottlenecks, drift and sequence diversity.
- LD blocks and genome history: watch recombination and bottlenecks change associations among variants.

LEARN AT YOUR OWN PACE
Take a twelve-chapter animated tour, pause and step backward or forward, then open the corresponding experiment. Reveal genotypes after observing phenotypes. Repeat samples to distinguish expected patterns from chance variation.

A REFERENCE ALWAYS NEARBY
The searchable glossary explains 168 terms and phrases, including statistical concepts, abbreviations and scientific symbols. Definitions connect directly to the app's examples and make important distinctions clear.

REAL DATA, CLEAR ASSUMPTIONS
Human-variation explorers use bundled published data. Simulations state their assumptions and distinguish illustrative results from measured observations. Source links support further reading.

Built for curious learners, students and educators on iPhone, iPad and Mac. Experiments and the glossary work offline; external source links require an internet connection. No account, advertising, analytics or genetic-data upload.

For education: the app does not analyze your DNA or provide medical predictions.

## Is Tony Crayfish Genetics Primer safe?

Not enough ratings yet to assess Tony Crayfish Genetics Primer.

## Is Tony Crayfish Genetics Primer legit?

Tony Crayfish Genetics Primer appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Tony Crayfish Genetics Primer is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1 — 2026-10-20

Version 1.1 makes genetics experiments clearer and more visual.

Explore Mendel’s original results for all seven pea traits, learn what true breeding means, and investigate a plant’s hidden genotype by crossing it and scoring its offspring.

Discover how test-cross offspring reveal recombinant gametes with a new Punnett square in two-point genetic mapping.

Watch linkage disequilibrium evolve over 50 generations in populations of 500 individuals. Compare a constant population with a bottleneck, switch between whole-population measurements and research samples, and follow animated heatmaps with a live generation display.

This update also improves button visibility, experiment controls, phenotype illustrations, glossary explanations and layouts across iPhone, iPad and Mac.

### 1.0 — 2026-10-16

No release notes.

## More apps by MARC PILON

- [Tony Crayfish Mosaic](https://appshunter.io/ios/app/tony-crayfish-mosaic/id6816353935)
- [Tony Crayfish Biology Hangman](https://appshunter.io/ios/app/tony-crayfish-biology-hangman/id6818157321)

All apps by MARC PILON: https://appshunter.io/developer/6816353937

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*