Buy the amazing GloFish! - MStephens


16 déc. 2012 (il y a 9 années et 2 mois)

404 vue(s)

Have you ever been sitting in your room at night thinking to
yourself “Wow it’s really dark in here, I wish I had a night light,
but the ones you plug into your wall are so lame!” If so, don’t
worry about being lame any longer because there’s a sweet new
genetically modified species on the market that will make you so
cool you’ll practically be a cucumber. They’re called

Using restriction enzymes, gel electrophoresis,
, DNA sequencing, and PCR, science has
managed to create these magical creatures.

Gel electrophoresis machine

Restriction Enzymes

Restriction enzymes cut DNA at specific recognition
sites and can essentially allow scientists to bind certain
sequences with other sections of DNA, making genetic
engineering possible. By using these, scientists have
discovered a sequence of DNA that codes for the glow
in the dark feature the


Gel electrophoresis

Gel electrophoresis separates large DNA on the basis
of the rate of movement through and

gel in an
electrical field, allowing scientists to see the exactly
sequence of bases in DNA strands. This is important in
the glow
dark jellyfish
making process because
scientists need to be able to know the exact genetic
makeup of the jellyfish before they can modify its
bases to make it glow.

taking place in the


Complementary DNA


(complementary DNA) are DNA molecules that
are made using mRNA template. Scientists create

libraries which provide extensive information
on certain genes that are responsible for the
specialized functions of a specific cell. This is helpful
when trying to determine what genes will make the
fish glow.

DNA sequencing

DNA sequencing is exactly what it sounds like, the
complete sequence of nucleotides for every single
chromosome in a cell. It is important because in order
for scientists to genetically modify organisms they
must first understand the original sequence of that
organism’s genes.

An small part of a sequence of DNA.

Polymerase chain reactions

PCR, or polymerase chain reaction, is used to amplify
or make copies of DNA being sampled very rapidly.
While the

were being made, scientists had to
do many tests and trial runs to make sure that they
would work and were safe so they used PCR to make
lots of copies of the DNA from the fish to test it.

So, buy your


They’re great as night lights and kids love them