Multiple Choice QuestionsWhich one of the following also acts as a catalyst in a bacterial cell?
sn RNA
hn RNA
23 S rRNA
23 S rRNA
Silencing of mRNA has been used in producing transgenic plants resistant to
bollworms
nematodes
White rusts
White rusts
The unequivocal proof of DNA as the genetic material came from the studies on a
bacterium
fungus
viroid
viroid
Which one of the following techniques made it possible to genetically engineer living organism
Recombinant DNA techniques
X -ray diffraction
Heavier isotope labelling
Heavier isotope labelling
Which one of the following is used as a vector for cloning the gene into higher organisms?
Baculovirus
Salmonella typhimurium
Rhizopus nigricans
Rhizopus nigricans
The one aspect which is not a salient feature of genetic code is its being
degenerate
ambiguous
universal
universal
D.
universal
The genetic code is degenerate, i.e, a given amino acid can be specified by more than one codons.
The genetic code inside the cell medium is said to be non-ambiguous because a particular condon always codes are same amino acid. But in certain rare cases the genetic code is found to be ambiguous, i.e some condon code for different amino acids under different conditions. The genetic code is almost universal.
Which one of the following palindromic base sequences in DNA can be easily cut at about the middle be some particular restriction enzyme?
5'-CGTTCG -3'
3'-ATCCTA-5'
5'-GATATG-3'
3'-CTACTA-5'
5'-GAATTC-3'
3'CTTAAG-5'
5'-GAATTC-3'
3'CTTAAG-5'
DNA and RNA segment tagged wit a radioactive molecule is called
vector
probe
clone
clone
Genetic engineering has been successfully used for producing
transgenic mice for testing safety to polio vaccine before use in humans
transgenic models for studying new treatments for certain cardiac diseases
transgenic cow -Rosie which produces high-fat milk for making ghee
transgenic cow -Rosie which produces high-fat milk for making ghee
Satellite DNA is useful tool in
Organ transplantation
sex determination
forensic science
forensic science
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