Concept explainers
What results from the experiments of Frederick Griffith provided the strongest support for his conclusion that a transformation factor is responsible for heredity?
To analyze:
Study the results of the Frederick Griffith experiment to analyze the conclusion that the transformation factor is responsible for heredity.
Introduction:
In
Explanation of Solution
In
In the first experiment, Griffith tried injecting mice with s strain and the mice died. Secondly, the mice were injected with heat-killed S strain of streptococcus, but surprisingly no death of mice was found. In the third experiment, the mice were injected with R strain, but no death occurred. Finally, when the heat-killed R strain of streptococcus was combined with harmless heat-killed S strain of streptococcus, he found that the mice are dead and the blood samples of the mice contain living S bacteria.
The transformation of R strain to s strain in mice supports the conclusion that Frederick, the transformation factor, causes the heredity.
From Frederick Griffith’s experiment, it is concluded that the transformation factor is responsible for heredity.
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