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प्रश्न
Draw a neat and labelled diagram explaining Meselson’s and Stahl’s experiment.
उत्तर
संबंधित प्रश्न
The ________enzyme is used to cut DNA at specific point
(a) DNA polymerase
(b) Alkaline phosphatase
(c) restriction endonuclease
(d) DNA ligase
What type of isotopes used in semiconservative replication experiment?
The conversion of R-type to S-type of Streptococcus pneumoniae when mixed with heat killed S-type is called ______.
Who among the following discovered transformation?
Identify the disease which is NOT transmitted through contaminated food and water.
Study the following statements and select the correct option.
Statement I: In the experiment performed by Hershey and Chase, viruses grown on radioactive phosphorus medium contained radioactive DNA, but not radioactive protein.
Statement II: DNA contains phosphorus, whereas protein lacks phosphorus
Study the following statements and select the correct option.
- 'R' strain of S. pneumoniae is nonvirulent, rough, non-pathogenic, and non-capsulated.
- 'S' strain of S pneumoniae is virulent, smooth, pathogenic, and encapsulated.
Which one of the following scientist performed the experiment with bacteriophage to prove DNA as genetic material?
Alfred Hershey and Martha Chase used ______ to provide unequivocal proof that DNA is the genetic material.
If the DNA of a virus is labelied with 32P and the protein of the virus is labelled with 35S, after transduction which molecules (s) would be present inside the bacterial cells.
