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Level A1 – BeginnerCEFR A1
2 min
70 words
- Chickens can make helpful proteins in eggs.
- Scientists want those proteins to stay active.
- New inserted traits can turn off later.
- This problem stops steady egg production of proteins.
- Researchers used a lab method to place traits.
- They added a green marker to watch.
- Cells kept glowing after many divisions.
- The glow showed the trait stayed active.
- The goal is stable bird lines.
- Stable eggs could help people and farms.
Difficult words
- protein — small parts in living things with jobsproteins
- trait — a feature or quality of a living thingtraits
- stable — not changing over time or many events
- marker — a sign used to see or find something
- division — one round of a cell making two cellsdivisions
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Do you eat eggs?
- Would you buy eggs that help people?
- Have you seen chickens on a farm?
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