Transformation in bacteria was discovered by

Options

A. Fred Griffth
B. Frobischer & Brown
C. Avery & Mcleod
D. M.Mc Carty

Answer

**Step-by-Step Solution:**

1. **Identify the Phenomenon**: The question asks about the discovery of transformation in bacteria. Transformation is a process where bacteria can take up foreign DNA from their environment and incorporate it into their own genome.

2. **Historical Context**: The phenomenon of transformation was first identified in the context of bacterial genetics.

3. **Key Scientist**: The discovery of transformation in bacteria is attributed to Frederick Griffith in the year 1928. He conducted experiments with Streptococcus pneumoniae, which demonstrated that a non-virulent strain could become virulent when exposed to heat-killed virulent bacteria.

4. **Transforming Principle**: Following Griffith's work, the concept of the "transforming principle" was further explored by three scientists: Oswald T. Avery, Colin M. MacLeod, and Maclyn McCarty in 1944. They identified that the transforming principle was DNA.

5. **Conclusion**: Therefore, the answer to the question is that transformation in bacteria was discovered by Frederick Griffith, and the transforming principle was later identified as DNA by Avery, MacLeod, and McCarty.

**Final Answer**: Transformation in bacteria was discovered by Frederick Griffith in 1928.

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