RNA is genetic material in
(A) bacteria
(B) cyanobacteria
(C) bacteriophages
(D) plant viruses
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In RNA the source of complementary RNA could be from an infection by viruses having RNA genomes or Mobile genetic elements (transposons) that form com
Correct Answer - RNA intermediate
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What are the characteristics of cells in which genetic material is known as nucleoid?
General characteristics of prokaryotic cell: 1. Prokaryotic cells are primitive type of cells. 2. It does not have membrane bound cell organelles (like endoplasmic reticulum, Golgi complex, mitochondria, etc.) and well-defined nucleus...
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The Young’s modulus of a material is 10^11 Nm^-2 and its Poisson’s ratio is 0.2. The modulus of rigidity of the material is
Correct option is: (A) 0.42 × 1011 N/m2
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The refractive index of a material is 1. If the speed of light in vacuum is 3 × 108 ms^-1 then the speed of light in that material is ………………..
B) 3 × 108 m/s
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Write a note on types of non-genetic RNA.
There are three types of cellular RNAs: 1. messenger RNA (mRNA), 2. ribosomal RNA (rRNA), 3. transfer RNA (tRNA). ‘ 1. Messenger RNA (mRNA): a. It is a linear polynucleotide. b. It accounts 3% of cellular...
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The exchange of genetic material takes place in:
(C) sexual reproduction
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Assertion: Central dogma is the flow of information from DNA to m RNA and then decoding the information present in m RNA in the form of protein.
b. Both assertion and reason are true, but reason is not the correct explanation of assertion.
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Which of the following statement are incorrect ? (i)RNA act as a genetic material as well as a catalyst. (ii)RNA is more stable than DNA (iii)RNA has
Correct Answer - b (b) : Evidences suggest that essential life processes such as metabolism, splicing , translation, etc. evolved around RNA . RNA used to act as a genetic material...
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How did Macleod, McCarty and Avery establish the Bio-Chemical nature of the so called "genetic material" identified by Griffith in his experiment.
They (worked on the bio-chemical nature of transforming principle in Griffith's experiment) purified proteins DNA and RNA from heat killed S cells, they discovered protein digesting enzyme (protease) RNA digesting enzyme...
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How did Alfred Hershey and Martha Chase arrive at the conclusion that DNA is the genetic material ?
Hershey - Chase experiment. Hershey and Chase grew some viruses in a medium that contained 32P radioactive phosphorus, these were allowed to infect E. coli, medium was agitated in a blender. Viral coats...
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