In his transformation experiments, what did Griffith observe?

A. Mixing a heat-killed nonpathogenic strain of bacteria with a living pathogenic strain makes the pathogenic strain nonpathogenic.
B. Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form.
C. Mice infected with a pathogenic strain of bacteria can spread the infection to other mice.
D. Mutant mice were resistant to bacterial infections.
E. Infecting mice with nonpathogenic strains of bacteria makes them resistant to pathogenic strains.

Griffith observed that mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form.

Explanation:

In his transformation experiments, Griffith observed that mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form. He found that the nonpathogenic bacteria took up genetic material from the heat-killed pathogenic bacteria and acquired the ability to cause disease. This process is known as transformation and was a key discovery in the field of genetics.

Learn more about Griffith's transformation experiments here:

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andriansp andriansp · Answer 2 · 2025-01-11T20:24:12-05:00

The answer would be:
B) Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form.

Griffith experiment proves that a bacteria can takes genetic material from its surrounding and insert it into itself. This experiment shows us that nonpathogenic strain can change if it exposed to pathogenic one. The ability is called transformation.