Question

what cells make up an \immortal cell line\ often used in labs? stem telo cdk hela

Explanation:

HeLa cells are a type of immortal cell line. They were derived from cervical cancer cells of Henrietta Lacks in 1951. These cells have the ability to divide indefinitely in culture, making them extremely useful in laboratory research for various biological and medical studies. Stem cells are undifferentiated cells with the potential to develop into different cell types but are not the "immortal cell line" referred to here. CDK (cyclin - dependent kinase) is an enzyme, not a cell type. TeLo is not a recognized cell type for this context.

Answer:

HeLa