Molecular Basis of Inheritance

Using imprints from a plate with complete
medium and carrying bacterial colonies, you
can select streptomycin resistant mutants and
prove that such mutations do not originates as
adaptation. These imprints need to be used -

During transcription, if the nucleotide sequence
of the DNA strand that is being coded is
ATACG, then the nucleotide sequence in the
mRNA would be -

After a mutation at a genetic locus the character
of an organism changes due to the change in :-

Which form of RNA has a structure resembling
clover leaf ?

In a mutational event, when adenine is replaced
by guanine, it is a case of -

The following ratio is generally constant for a
given species :-

In the genetic code dictionary, how many
codons are used to code for all the 20 essential
amino acids : -

Degeneration of a genetic code is attributed to
the : -

During translation initiation in prokaryotes, a
GTP molecule is needed in : -

During transcription, the DNA site at which
RNA polymerase binds is called :-

What does "lac" refer to in what we call the lac
operon ?

What would happen if in a gene encoding a
polypeptide of 50 amino acids, 25th codon
(UAU) is mutated to UAA ?

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 ?

Which of the following reunites the exon
segments after RNA splicing ?

Transformation experiment was first performed
on which bacteria : -

In a DNA percentage of thymine is 20% then
what is the percentage of guanine : -

Change in sequence of nucleotide in DNA is
called as -

Out of 64 codons, 61 codons code for 20 types
of amino acid it is called : -

Which of the following enzymes are used to join
bits of DNA ?

Jacob and Monad studied lactose metabolism in
E.Coli and proposed operon concept. Operon
concept applicable for :

Exon part of m-RNAs have code for : -

In E. Coli, during lactose metabolism repressor
binds to : -

m-RNA is synthesised on DNA template in
which direction : -

Types of RNA polymerase required in nucleus
for RNA synthesis : -

In Negative operon : -

Gene and cistron words are sometimes used
synonymously because : -

Anticodon occurs in :

Similarity in DNA and RNA :

Which of the following is initiation codon ?

Length of one loop of B- DNA :

Method of DNA replication in which two
strands of DNA separates and synthesize new
strands

In three dimensional view the molecule of
t-RNA is :