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Level A1 – BeginnerCEFR A1
1 min
49 words
- People live in the high Andes.
- Life there has low oxygen and cold.
- Scientists looked at DNA in people.
- They studied two Indigenous groups.
- One group lives high and one low.
- They found different DNA signals.
- These signals can change gene activity.
- Changes may help with blood and arteries.
Difficult words
- scientist — person who studies nature or scienceScientists
- indigenous — original people of a place or region
- oxygen — gas in air people need to breathe
- gene — small part of cells that gives instructions
- signal — sign that shows information or a changesignals
- artery — blood vessel that carries blood from heartarteries
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Discussion questions
- Would you like to live high in the mountains?
- Do you live in a high or low place?
- Have you heard about DNA before?
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How the Amazon molly stays genetically healthy
Researchers at the University of Missouri found that the all-female Amazon molly keeps its DNA healthy despite cloning. They show gene conversion and genome comparisons help explain how the species avoided extinction and remained diverse.