tRNA for serine bears anticodon _____.
The structure of tRNA resembles which leaf?
Ribosomes are the cellular factory for synthesis of _____.
Ribozyme in bacteria is _____ rRNA.
[A] 30 S
[B] 32 S
[C] 23 S
[D] 21 S
Additional sequences on mRNA referred to as _____ are not translated,
[A] Variable number tandem repeats
[B] Non coding sequence
[C] Untranscribed regions
[D] Untranslated regions
In Eukaryotes, which of the following mechanisms is not correct in terms of regulation of gene expression?
[C] Transport of mRNA from cytoplasm to nucleus
beta-galactosidase is synthesized by E. coli to catalyze hydrolysis of _____ into _____ and glucose.
[A] galactose, lactose
[B] galactose, glucose
[C] lactose, galactose
[D] maltose, galactose
Lac operon was elucidated by
[A] Watson, Crick
[B] Jacob, Monod
A polycistronic structural gene is regulated by a common promoter and regulator gene in bacteria and is commonly termed as
[C] Genetic code
Out of the 3 structural genes z, y and a, the gene (s) which gene of E. coli lac Operon code for permease.
Represser protein in lac operon concept binds to which gene?
In lac operon, the inducer binds to ______ to initiate synthesis of enzymes responsible for lactose metabolism.
[A] i gene
[C] O gene
[D] Z gene
Lac operon operates in E. Coli _____.
[C] all time
Generally regulation of lac operon by represser is referred to as _____ regulation.
[D] both (b) and (c)
Considering cost of sequencing 1 bp to be US 3$, 4 the approximate cost of HGP (Human Genome Project) would come out to be _____.
[A] 3 billion
[B] 9 million
[C] 9 billion
[D] 3 million