stem cells Flashcards
what is a stem cell
a stem cell is an undifferentiated cell with the potential to form a wide variety of different stem cells
what is a zygote
a zygote is an sperm and egg cell formed together
what is an embryonic stem cell
stem cells from an early embryo that can differentiate to form
the specialised cells of the body
what is an adult stem cell
stem cells that are found in adults that can differentiate and form a limited number of cells
what is a good source of adult stem cells
a good source of adult stem cells is bone marrow
where can you find stem cells in the human body
you can find stem cell in most of the different tissues in your body including your blood, brain, muscle and liver
why might some stem cells stay in the tissues for years
some stem cell might stay in the tissues for years because some tissues cannot differentiate and they are only needed if the cells are injured or affected by disease
what is therapeutic cloning
a process where an embryo is produced that is genetically
identical to the patient so the calls can then be used in medical treatments
why might some people not want the embryonic stem cells from the embryo
they might not want the embryonic stem cells from the embryo because of religious and ethical objections. this is because people believe that it is a violation of the embryo’s human rights