Niels Kaj Jerne

High school (ages 12+)
Science & Technology

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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/niels-kaj-jerne

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. When was Niels Kaj Jerne born?December 23, 1911
2. Where was Niels Kaj Jerne born?Denmark
3. What is the career?Distinguished immunologist whose theoretical work profoundly shaped the field
4. What did Niels Kaj Jerne discover about antibodies?He proposed that many antibodies already exist in the body before germs arrive, ready to fight infections. This idea changed how scientists think about the immune system.
5. How does Jerne's network theory explain the immune system?He said antibodies can talk to each other, like a network, and this helps the body remember past germs and keep balance.

Idiotypic Network Theory: Jerne's model of immune regulation where antibodies interact with each other.
Self-Tolerance: The immune system's ability to recognize and not attack the body's own tissues.
Thymus: A gland crucial for the maturation and 'education' of T cells involved in immune tolerance.
Monoclonal Antibodies: Identical antibodies produced by a single clone of cells, a key technological discovery.