other than genomes by removing adding or
alternatively is completely
revolutionizing the scientific field
today we'll talk about the CRISPR
calcite system which allows scientists
to easily quickly and reliably other DNA
the curse break asteroid system is found
naturally in bacterias immune response
to bacteriophages which are viruses that
infect bacteria using CRISPR Caston the
bacteria can chop up and inactivate the
DNA of the virus CRISPR stands for
clustered regularly interspaced short
palindromic repeats each time a new
virus invades back T receive a segment
of the viral DNA in spacers between
repeated sequences found in the stretch
of DNA called the CRISPR early the
CRISPR cast light system consists of two
main parts cast nine and guide RNA
Castine is a nucleus our person that can
cut DNA the guide RNA is composed of a
scaffold sequence which allows cast 90
bind to the target DNA in the spacer
identifies the genomic target so how do
scientists actually use customer-first
deck Chef cast lines from a bacteria and
guide RNA the targets and specific
signals the cast 9g RNA complex can then
be inserted into a cell where it finds a
match to the DNA target that matches
with the spacer sequence in the guide
RNA the end of the three prime end of
the tRNA sequence binds to the target
DNA this Bunin causes cast night to
change shape and then cut the target DNA
the self tries to repair the cut but
oftentimes displaced imitations for
disabled the team sizes can also the
specific sequence to compare with the
end of the cut and become integrated
into the Jeep strangely calcium doesn't
care about organism at ten
scientist at least CRISPR to extract the
HIV virus from living organisms
eliminate seeds from Tomatoes kill
antibiotic resistant bacteria and to
slow the growth of cancer cells it's
crazy to imagine what the future may
hold for CRISPR CRISPR coastline has a
potential to treat conditions like
muscular dystrophy AIDS cancer and other
diseases it can even be used to improve
crop yields by genetically engineered
plants to be more resistant change the
appearances of organisms and even as if
embryos to produce designer babies
CRISPR can be revolutionary or it can be
catastrophic it raises some serious
concerns that must be addressed my
Krister be exploited for harm can be
accidentally messed up and causing
irreversible damage just because we can
edit organisms with the genomic level
does that mean you should remember to be
curious be mindful and be informed
thanks for watching
