scientists have long imagined being able
to make specific changes to the genetic
code of a cell or organism a
revolutionary genome editing technology
invented by scientists at UC Berkeley
and umeå University makes this possible
using an RNA guided protein called cast
9 cast 9 searches through the cell's
vast genetic material until it finds a
sequence of DNA that matches the
sequence of its programmable guide RNA
the guide RNA enables cast 9 to open the
DNA helix then to position two molecular
blades to cut each strand of the DNA
double helix repair enzymes seal the gap
in the broken DNA sometimes by inserting
new genetic information supplied by the
cell or the experimenter in this way
disease-causing mutations can be
corrected by changing the underlying
genetic code scientists are now using
this cast 9 technology for research
applications in human health agriculture
and bioenergy
you
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