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A big advantage of AFS cells is that ____ are easy to obtain

The report describes how the cells ____ harvested from backup amniotic fluid specimens. These had been ________ for amniocentesis, a procedure that looks for genetic disorders ______ a baby is born.

Similar stem cells were isolated ____ "afterbirth". This is the placenta and other membranes that ___ expelled after a baby is born normally.

The potential __ stem cells is enormous. In principle a bank of ____ 100,000 specimens could supply 99% of the US population ____ perfect genetic matches for transplants, Atala says. There are ____ than 4 million live births each year in the ______ States.

Besides being easily obtained AFS cells can be grown __ large quantities. This is because the cells divide in ___ every 36 hours.

They also don't need guidance from _____ cells. And they don't produce tumours. These can occur ____ certain other types of stem cells.

Specialised cells made ____ AFS cells include all three types of cell found __ a developing embryo. These are known as ectoderm, mesoderm, ___ endoderm.

Their great flexibility and potential for growth, means ____ AFS cells are very similar to human embryonic stem _____. These are able to generate every different type __ cell in the body.

The full range of cells that ___ cells can produce is not known yet, said Atala. ___ far we've been successful with every cell type we've _________ to produce.

"The AFS cells can also produce mature _____ that meet tests of function, which suggests their therapeutic _____."

These tests included implanting neural cells from AFS _____ into mice that had a degenerative brain disease. The _____ grew and "re-populated" the diseased areas. Bone cells produced ____ AFS cells were successfully used to grow bony tissue __ mice. Liver cells were able to secrete urea, which ___ liver produces from ammonia.

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