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प्रश्न
Explain Avery, McCarty, and MacLeod’s experiment in detail.
उत्तर
- Avery, Macleod, and McCarty (1944) purified DNA, RNA, proteins (enzymes), and other materials from heat-killed S-type and mixed them with R-type to see which ones could transform living R-types to S-types.
- Only those mixed with DNA were transformed into S-type bacteria.
- They also discovered that protein-digesting enzymes (proteases) and RNA-digesting enzymes (RNases) did not affect transformation. This indicated the transforming substance was neither a protein nor RNA.
- DNA digested with DNase inhibited transformation, suggesting that DNA caused the transformation.
संबंधित प्रश्न
Explain 'Wobble hypothesis' with the help of a suitable diagram.
The following diagram represents an important concept in the genetic implication of DNA. Identify A, B and C.
Which of the following results prominently proved that DNA is the transforming material from the experiments carried out by Avery, Macleod, and McCarty by using various enzymes?
What would happen if we inject a mice with the mixture of heat killed S-type and living R-type?
Hershey and Chase proved that genetic material is DNA, by using the organism ______
To prove that DNA is the genetic material, which radioactive isotopes were used by Hershey and Chase (1952) in experiments?
Oswald Avery, Colin MacLeod, and Maclyn McCarty used enzymes to purify biochemicals such as proteins, DNA, and RNA from the heat-killed S cells to see which ones could transform live R cells into S cells in Griffith's experiment. They observed that ______
Avery, MacLord and McCarty proved that ______.
Describe Frederick Griffith's experiment on Streptococcus pneumoniae.
Describe Griffith's transformation experiment.
