Evo-devo gene toolkit

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/evo-devo-gene-toolkit

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Not applicable; refers to a functional set of genes
2. What is the origin?Ancient, with homologous genes present in the common ancestor of bilaterian animals
3. Why are the genes in the toolkit called master regulatory genes?Because they don’t build structures directly; instead, they coordinate the whole developmental process, deciding when, where, and what cells become.
4. How can small changes in these genes create big differences between animals?Tiny tweaks in when or where the genes are active can shift body parts, leading to big changes like a fin turning into a wing.

Transcription Factors: Proteins that bind to DNA and control the rate of gene transcription.
Body Plan: The fundamental structure and organization of an animal's body.
Homologous Genes: Genes in different species that evolved from a common ancestral gene.
Morphology: The study of the form and structure of organisms and their specific structural features.