Q: What are stem cells? A: Stem cells are the forerunners of the specialized cells that generate all of the tissues in a human body. Stem cells are capable of renewing themselves almost indefinitely, ...

Stem cells are broadly classified as either adult or embryonic. Technically, even stem cells that come from fetal tissue or umbilical cord blood are classified as adult stem cells, and so most ...

Cell Cycle and Cell Division MCQs: Understanding a cell is complicated, and knowing about its growth and division is much more complex. Students of Class 11 Science deal with such a deep concept of ...

Senescent skin cells, often referred to as zombie cells because they have outlived their usefulness without ever quite dying, have existed in the human body as a seeming paradox, causing inflammation ...