Multiple Choice QuestionsGenetic 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
Which one of the following does not follow the central dogma of molecular biology?
Pea
Mucor
Chlamydomonas
Chlamydomonas
Which of the following is used in gene cloning?
Nucleoids
Lomasomes
Mesosomes
Mesosomes
D.
Mesosomes
Plasmids are extrachromosomal genetic elements (DNA) found in bacterial cells. These can exist and replicate independently of the bacterial chromosome. Nowadays plasmids are widely used as vectors to produce recombinant DNA for gene cloning.
Which of the following is used in gene cloning?
Nucleoids
Lomasomes
Mesosomes
Mesosomes
Which one of the following is now being commercially produced by biotechnological procedures?
Nicotine
Morphine
Quinine
Quinine
In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the
ribosomes
nucleus
dictyosomes
dictyosomes
The lac operon consists of
four regulatory genes only
one regulatory gene and three structural genes
two regulatory genes and two structural genes
two regulatory genes and two structural genes
Sickle cell anaemia is
an autosomal-linked dominant trait
caused by substitution of valine by glutamic acid in the β-globin chain of haemoglobin
caused by a change in a base pair of DNA
caused by a change in a base pair of DNA
There is no DNA in
an enucleated ovum
mature RBCs
a mature spermatozoan
a mature spermatozoan
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