Nucleic Acids and the Genetic Material Problem Set

Nucleic Acids and the Genetic Material Problem Set 1

Problem 7: Transformation

Frederick Griffith accidentally discovered transformation when attempting to develop a vaccine for pneumonia. He injected mice with samples from S-strain (virulent) and/or R-strain (non-virulent) pneumococci bacteria. Which of the following results is NOT consistent with Griffith's experiments?

A injected S-strain; mouse dies.
B injected R-strain; mouse lives.
C injected heat-killed S-strain; mouse lives.
D injected mixture of heat-killed S-strain and live R-strain; mouse lives.
E injected mixture of heat-killed R-strain and live S-strain; mouse dies.

The Biology Project
University of Arizona
Thursday, October 3, 1996
Contact the Development Team