If an injection to the mouse contains live R strain and heat-killed S strain Streptococcus pneumonia, ____
a. the mouse will live
b. the mouse will became fatally ill and live S strain bacteria will be detected in its blood
c. the mouse's blood will contain live pathogenic R strain bacteria
d. the dead S strain bacteria will transform to live R strain bacteria
e. DNA from the live R strain bacteria will revive the dead S strain bacteria
ANSWER: b
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