Transcript 8 Hershey and Chase Experiment

#8Hershey and Chase
Experiment
Zabrina Shvartsman
Ashley Sroka
Brendan Weiss
EXPERIMENT

They wanted to see if PROTEIN or DNA was
responsible for hereditary action
EXPERIMENT CON’T.

Meaning, they wanted to know if you
inherited your hair and eye color from your
parents because of the PROTEIN or the
DNA
EXPERIMENT CON’T.

They used
bacteriophages
(viruses that
invade bacteria)
to discover the
solution
EXPERIMENT CON’T.

PROTEINS injected with
sulfur
–
When they replicated, the new
bacteriophages weren’t
radioactive

PROTEINS are not responsible
for hereditary action
EXPERIMENT CON’T.

DNA injected with
phosphorous
–
When they replicated, the
new bacteriophages were
radioactive

DNA is responsible for
hereditary action
EXPERIMENT CON’T.

http://nortonbooks.com/college/biology/anima
tions/ch12a02.htm
Question # 8
8.
You want to use a radioactive
tracer that will label only the
protein in an RNA virus.
Assume the virus is composed
of only a protein coat and an
RNA core. Which of the
following would you use?
a.
b.
c.
d.
Radioactive phosphorous
Radioactive nitrogen
Radioactive sulfur
Radioactive carbon
Question # 8 con’t.



You would use sulfur
Proteins contain sulfur, and not
phosphorous
When the Hershey-Chase
experiment tested the proteins for
hereditary action, their replicates
were not radioactive