Molecular Basis Of Inheritance Question 176
Question: Hershey and Chase used radioactive $ ^{35}S $ and $ ^{32}P $ in experiments to provide evidence that DNA was the genetic material. These experiments pointed to DNA because:
Options:
A) Progeny viruses retained $ ^{32}P $ but not $ ^{35}S $ .
B) Retention of $ ^{32}P $ in progeny viruses indicated that DNA was passed on.
C) Loss of $ ^{35}S $ in progeny viruses indicated that proteins were not passed.
D) All of the above
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Answer:
Correct Answer: D
Solution:
[d] Only DNA incorporates radioactive P.
Radioactive S is incorporated into proteins.
The fact that progeny virus retained radioactive P and not: radioactive S indicates that DNA is heritable and protein is not.
BETA
