Totipotency Flashcards Preview

A2 Biology Unit 5 > Totipotency > Flashcards

Flashcards in Totipotency Deck (5):

What are stem cells?

An undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.


What are totipotent cells?

Stem cells that can mature (develop) into any type of body cell in an organism.
These are only present in the early life of an embryo.


How are genes prevented from expressing themselves?

Preventing transcription and hence production of mRNA

Breaking down mRNA before its genetic code can be translated


Where are adult stem cells found?

Inner lining of the small intestine, skin, bone marrow


What can stem cells be used for?

Treating genetic disorders (thalassaemia, sickle cell anaemia)