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tumour
growth of abnormal cells caused by uncontrolled cell growth
Benign Tumour
a tumour that grows until there is no more room and is usually covered in a membrane
Malignant Tumour
a tumour that grows and spreads to neighbouring healthy tissues and causes cells to break off
Cancer
disease in which some of the body’s cells grow uncontrollably and spread to other parts of the body
Lifestyle risks for cancer
smoking
obesity
UV exposure
Genetic risks for cancer
genetic inheritance
What are the advantages of using stem cells from embryos?
can create many embryos in a lab
painless technique
can treat many diseases
What are the disadvantages of using stem cells from embryos?
embryo rights/can not consent
unreliable technique
What are the advantages of using stem cells from bone marrow?
no ethical issues
can treat some diseases
procedure is relatively safe
What are the disadvantages of using stem cells from bone marrow?
risk of infection
treats only a few diseases
procedure can be painful