Which one of the following also acts as a catalyst in a bacterial cell ?
[2011]
Satellite DNA is useful tool in:
[2010]
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The one aspect which is not a salient feature of genetic code, is its being:
[2010]
Select the two correct statements out of the four (a–d) given below about lac operon.
(i) Glucose or galactose may bind with the repressor and inactivate it
(ii) In the absence of lactose the repressor binds with the operator region
(iii) The z-gene codes for permease
(iv) This was elucidated by Francois Jacob and Jacque Monod
The correct statements are:
[2010]
Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a ‘triplet’
[2009].
Semi-conservative replication of DNA was first demonstrated in:
[2009]
Removal of introns and joining the exons in a defined order in a transcription unit is called:
[2009]
What is not true for genetic code?
[2009]
T.O. Diener discovered a:
[2009]
Haploids are more suitable for mutation studies than the diploids. This is because
[2008]
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
[2008]
Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
[2008]
In the DNA molecule
[2008]
Molecular basis of organ differentiation depends on the modulation in transcription by
[2007]
One gene - one enzyme relationship was established for the first time in
[2007]
During transcription, RNA polymerase holoenzyme binds to a gene promoter and assumes a saddle-like structure, what is it’s DNA-binding sequence?
[2007]
A sequential expression of a set of human genes
[2007]
The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cells. How is this DNA accommodated?
[2007]
The okazaki fragments in DNA chain growth
[2007]
In which mode of inheritance do you expect more maternal influence among the offspring?
[2006]
One gene-one enzyme hypothesis was postulated by
[2006]
E.coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because:
[2005]
Which one of the following makes use of RNA as a template to synthesize DNA?
[2005]
Which of the following is true with respect to AUG? [2004]
Telomerase is an enzyme which is a [2003]
122 videos|311 docs|196 tests
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122 videos|311 docs|196 tests
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