genetic engineering - Blog

onwardhaggardΒιοτεχνολογία

12 Δεκ 2012 (πριν από 4 χρόνια και 8 μήνες)

162 εμφανίσεις

Matthew Vogel

Period 1


GENETIC ENGINEERING


A wonderful example of genetic engineering
was scientists

taking a mouse that was
fr
ozen for
twenty years and cloning
it. To do this, t
he
y had
to thaw

out
brain cells

and rem
ove

the nucleus
from them. Then they
united
each nucleus
with an unfertilized egg

from the brain cell that it had
been

originally

removed from

and
gave each egg an electric shock
,

which stimulated the
activation of the sperm
.
The clone embryo was injected into mouse wombs w
hen it was seen that
s
ome

eggs had begun

dividing normally into clones of the original mouse
.
It was amazing that
this experiment was a success because the mice had not been treated in any special way before
being frozen.









1.
http://www.technologyreview.com/blog/editors/23577/



2.
http://www.globalchange.com/cloning
-
of
-
mouse
-
frozen
-
for
-
16
-
y
ears
-
what
-
next.htm



3.
http://www.technologyreview.com/biomedicine/24640/