Single Choice

In microbial genetics which one is reffered to as "Griffith effect"?

AConjugation
BTransduction
CTransformation
Correct Answer
DSex-duction

Solution

In 1928, Frederick Griffth, in a series of experiments with Streptococcus pneumoniae witnessed a great transformation in the bacteria. and is known as transforming principle.
So the correct option is 'Transformation'.


SIMILAR QUESTIONS

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The final proof for DNA as the genetic material came from the experiments of

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To prove that DNA is the genetic material, which radioactive isotopes were used by Hershey and Chase(1952) in their experiments?

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Choose the correct answer from the alternatives given : If the DNA of a virus is labelled with 32P and the protein of the virus is labelled with 355, after transduction which molecule(s) would be present inside the bacterial cells?

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Choose the correct answer from the alternatives given : Which of the following criteria should be fulfilled by a molecule to act as a genetic material? (i) It should be able to replicate. (ii) It should be structurally and chemically stable. (iii) It should be able to undergo slow mutations. (iv) It should be able to express itself in the form of Mendelian characters.

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Choose the correct answer from the alternatives given : Match column I with column II and select the correct option from the given codes. Column A Column B A. F. Meischer (i) DNA double helix B. Griffith (ii) Nuclein C. Hershey and Chase (iii) S. pneumonia D. Watson and Crick (iv) Bacteriophages E. Wilkins and Franklin (v) X-ray diffraction studies

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Choose the correct answer from the alternatives given : Match column I with column II and select the correct option from the given codes. Column I Column II A. Griffith (i) Lac operon B. Hershey and Chase (ii) Semi-conservative DNA replication C. Meselson and Stahl (iii) Transduction D. Jacob and Monad (iv) Transformation

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Recall the experiments done by Frederick Griffith, Avery, MacLeod and McCarty, where DNA was speculated to be the genetic material. If RNA, instead of DNA was the genetic material, would the heat killed strain of Pneumococcus have transformed the R- strain into virulent strain? Explain.

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