cell division

Question 1

what is a stem cell?

Answer 1

-an unspecialised cell which is capable of differentiating into other cells types and of cell renewal (zygote).

Question 2

function of stem cells in embryos

Answer 2

-embryonic stem cells can replicate themselves and differentiate themselves into many other types of cells.

• embryonic stem cells may be able to treat conditions such as paralysis and diabetes by dividing to replace damaged cells

Question 3

function of stem cells in adult bone marrow

Answer 3

adult stem cells can differentiate into several types of cells to replace dead or damaged tissues.
e.g. bone marrow cells can form into many types of blood cells