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Who discovered that the hereditary system of one strain of bacteria?
Wiki User
∙ 9y ago
Frederick Griffith was a British bacteriologist. He discovered that hereditary system of one strain of bacteraia. His experiment showed how bacteria changed its form and function. It is called Griffith's experiment which he carried out in 1928
Wiki User
∙ 9y ago
Frederick Griffith is credited with discovering the hereditary system involving transformation in bacteria. In his experiments with Streptococcus pneumoniae in 1928, Griffith observed that genetic material could be transferred between different strains of bacteria, influencing their traits. This discovery laid the foundation for understanding DNA as the hereditary material.
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What are two ways that rough bacteria differ from smooth bacteria?
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What important question remained unanswered by griffith experiment?
Assuming you mean the Frederick Griffith bacterial experiment, the question left unanswered was how the rough strain (less harmful) bacteria transformed into the smooth strain (lethal) bacteria. When he injected live rough strain bacteria, the mouse lived. When he injected live smooth strain bacteria, the mouse died. But if dead smooth strain bacteria was injected, the mouse lived. So if either live rough strain or dead smooth strain could be injected without killing the mouse, then it would stand to reason that one could inject both, the mouse should live. But the mouse died. So he figured the rough strain was somehow taking on the characteristics of the smooth strain bacteria, perhaps by being in close proximity to dead smooth strain bacteria, but he didn't know why. We now know that the smooth strain DNA was somehow getting grafted into the rough strain bacteria and making it able to create a coating which prevented the immune system (of the mouse in this case) from killing it. In case you mean the John Howard Griffin racial change experiment, the question left unanswered was how to stop racism. While his experiment was not completely successful, he gained a number of insights into the experiences of men of color in America. He was able to speak to people in both groups, but yet, he was not able at that point to get them to reconcile with each other.
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What did Griffith discover as a result of his experiments?
Frederick Griffith was a British bacteriologist. In January 1928, he reported what is now known as Griffith's Experiment, the first widely accepted demonstrations of bacterial transformation, whereby a bacterium distinctly changes its form and function.
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