Molecular Basis of Inheritance

Identify the correct order of organisation of
genetic material from largest to smallest :

Satellite DNA is important because it :

Which one of the following is not
applicable to RNA?

Select the correct option ;

Transformation was discovered by :

Which one of the following is wrongly matched?

Genes of interest can be selected from a genomic
library by using :

The figure gives an important concept in the genetic
implication of DNA . Fill the blanks A, B and C.

In an inducible operon, the genes are :

Satellite RNA are present in some :

One of the most frequently used techniques in DNA
fingerprinting is :-

Which of the following is not a property of the
genetic code ?

Which of the following statements is not true of two genes that show 50% recombination frequency ?

Which enzyme will be produced in a cell in which there is a non-sense mutation in the lac Y gene ?

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.

Removal of RNA polymerase -III from nucleoplasm will affect the synthesis of

Ribosomal RNA is actively synthesized in

Removal of introns and joining of exons in a defined order during transcription is called

Which one of the following is not a part of a transcription unit in DNA ?

If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the
complementary RNA stand sequence

Read the following four statements (A-D) :
(A) In transcription, adenosine pairs with uracil
(B) Regulation of lac operon by repressor is referred to as positive regulation
(C) The human genome has approximately 50,000 genes
(D) Haemophi...

What are those structures that appear as 'beads-on-string' in the chromosomes when viewed
under electron microscope ?

The unequivocal proof of DNA as the genetic
material came from the studies on a :

The one aspect which is not a salient feature of
genetic code, is its being –

Which one of the following palindromic base
sequences in DNA can be easily cut at about the
middle by some particular restriction enzyme?

Which one of the following does not follow the
central dogma of molecular biology ?

Select the two correct statements out of the four
(a-d) statements given below about lac operon.
(a) Glucose or galactose may bind with the
repressor and inactivate it
(b) In the absence of lactose the repressor binds
with the operator re...

Which one of the follwoing statements about the
particular entity is true ?

The lac Operon consists of -

In eukaryotic cell transcription, RNA splicing
and RNA capping take place inside the -

The 3'-5' phosphodiester linkages inside a
polynucleotide chain serve to join -

What is not true for genetic code?

Semi-conservative replication of DNA was first
demonstrated in :

Whose experiments cracked the DNA and
discovered unequivocally that a genetic code is a
"triplet" ?

Removal of introns and joining the exons in a
defined order in a transcription unit is called :

In the DNA molecule:

Which one of the following pairs of nitrogenous
bases of nucleic acids, is wrongly matched with
the category mentioned against it?

Which one of the following pairs of codons is
correctly matched with their function or the
signal for the particular amino acid ?

Polysome is formed by

One turn of the helix in a B-form DNA is
approximately -

Which antibiotic inhibits interaction between
tRNA and mRNA during bacterial protein
synthesis ?

Amino acid sequence, in protein synthesis is
decided by the sequence of -

Antiparallel strands of a DNA molecule means
that-

One gene-one enzyme hypothesis was
postulated by -

Telomerase is an enzyme which is a -

Which one of the following hydrolyses internal
phosphodiester bonds in a polynucleotide chain ?

During transcription holoenzyme RNA
polymerase binds to a DNA sequence and the
DNA assumes a saddle like structure at the point.
What is the sequence called ?

Which one of the following makes use of RNA
as a template to synthesize DNA -

E. coli cells with a mustard z gene of the lac
operon cannot grow in medium containing only
lactose as the source of energy because -

Protein synthesis in an animal cell occurs -