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A2 Biology Unit 5 > Totipotency > Flashcards

Flashcards in Totipotency Deck (5):
1

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.

2

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.

3

How are genes prevented from expressing themselves?

Preventing transcription and hence production of mRNA

Breaking down mRNA before its genetic code can be translated

4

Where are adult stem cells found?

Inner lining of the small intestine, skin, bone marrow

5

What can stem cells be used for?

Treating genetic disorders (thalassaemia, sickle cell anaemia)