In transgenics, expression of transgene in target tissue is determined by
[2004]
During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and
[2004]
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The telomeres of eukaryotic chromosomes consist of short sequences of
[2004]
Crossing over that results in genetic recombination in higher organisms occurs between
[2004]
In a mutational event, when a denine is replaced by guanine, it is a case of
[2004]
DNA fingerprinting refers to
[2004]
Genetic map is one that
[2003]
Degeneration of a genetic code is attributed to the
[2003]
In the genetic code dictionary, how many codons are used to code for all the 20 essential amino acids ?
[2003]
What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA?
[2003]
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as ‘start’ or ‘stop’codon ?
[2003]
During translation initiation in prokaryotes, a GTP molecule is needed in
[2003]
During transcription, the DNA site at which RNA polymerase binds is called
[2003]
What does "lac" refer to in what we call the lac operon?
[2003]
When a cluster of genes show linkage behaviour they
[2003]
Exon part of m- RNAs have code for
[2002]
In a DNA percentage of thymine is 20% then what will be the percentage of guanine?
[2002]
Transformation experiment was first performed on which bacteria?
[2002]
Jacob and Monod studied lactose metabolism in E.coli and proposed operon concept. Operon concept is applicable for
[2002]
Out of 64 codons, 61 codons code for 20 types of amino acid. It is called
[2002]
In E.coli during lactose metabolism repressor binds to
[2002]
Frequency of an allele in a isolated population may change due to
[2001]
In which direction m-RNA is synthesised on DNA template ?
[2001]
At time of organogenesis genes regulate the process at different levels and at different time due to
[2001]
Gene and cistron words are sometimes used synonymously because
[2001]
122 videos|311 docs|196 tests
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122 videos|311 docs|196 tests
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