The Search for Genetic Material
The Search for Genetic Material: Overview
This topic covers concepts, such as, Molecular Basis of Inheritance, Genetic Material, Evidence of DNA as Genetic Material, Griffith Experiment, Avery Experiment, Hershey and Chase Experiment & Properties of Genetic Material etc.
Important Questions on The Search for Genetic Material
The series of experiments done by F. Griffith involved which of the following bacterium:
MacLeod, McCarty and Avery determined that R strain bacteria transforming into S strain bacteria because of:
Experiments of Griffith on mice explained the phenomenon of:
Which of the following organic molecule has a main role to play in the inheritance?
In RNA thymine is not present.
The major difference between RNA and DNA is that the _____ nitrogen base is absent in DNA molecules.
Write the scientific name of the bacteria on which Frederick Griffith did experiments and witnessed a transformation in the bacteria.
RNA is a double-helical structure.
In DNA, the uracil nucleobase is replaced by which base?
A student isolated a new virus which is able to infect E. coli. The following experiment has to follow to confirm the hereditary material of new virus.
Match the following lists:
| List - I | List - II | ||
| Erwin Chargaff | Transforming principle | ||
| Frederick Griffith | Nuclein | ||
| Alfred Hershey | Ratio between and and that between and are constant, each equals one | ||
| Colin MacLeod | Biochemical nature of transforming principle | ||
| as the genetic material that is passed from virus to bacteria | |||
The correct match is
is a better genetic material than because of
DNA is the hereditary material of the cell which provides the genetic information. This fact was established by Martha Chase and Alfred Hershey individually in the year 1959.
In Griffith’s experiment, the conversion of R-type to S-type of Streptococcus pneumoniae when mixed with heat killed S-type is called
A molecule that acts as a genetic material must fulfil the following criteria, except
Which of the following isotopes were used in the Hershey-Chase experiments?
The fact that DNA is a genetic material was established by the experiment of:
In 1944, Avery, McCarty and MacLeod isolated a substance from heat-killed a virulent form of bacteria and added to the non-virulent form of bacteria which change the non-virulent to virulent from this substance can be destroyed by
The mobile genetic element is.
