Question

Which cells are considered immortal?

Answer 1

cancer cells are usually considered as immortal (eg-HeLa cells). Cells can be also made to immortal by using mutangens or technique such as hybridoma methods.

Answer 2

In 1951, a scientist at Johns Hopkins Hospital in Baltimore, Maryland, created the first immortal human cell line with a tissue sample taken from a young black woman with cervical cancer. Those cells, called HeLa cells, quickly became invaluable to medical research—though their donor remained a mystery for decades.