Molecular Basis of Inheritance

If the length of a DNA molecule is 1.1 metres, what will b the approximate number of base pairs?

If a geneticist uses the blind approach for sequencing the whole genome of an organism, followed by assignment of function to different segments, the methodology adopted by him is called as :

Transposons can be used during which one of the following?

Read the following statements and choose the set of correct statements:
(a) Euchromatin is loosely packed chromatin
(b) Heterochromatin is transcriptionally active
(c) Histone octamer is wrapped by negatively charged DNA in nucleosome
(d) H...

DNA polymorphism forms the basis of:

The process of translation of mRNA to proteins begins as soon as:

Statement I : The codon 'AUG' codes for methionine and phenylalanine.Statement II : 'AAA' and 'AAG' both codons code for the amino acid lysine.In the light of the above statements, choose the correct answer from the options given below.

Which one of the following statements about histones is wrong?

Which is the "Only enzyme" that has "Capability" to catalyse Initiation, Elongation and Termination in the process of transcription in prokaryotes?

Which of the following RNAs is not required for the synthesis of protein?

If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it?

Identify the correct statement.

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as

What is the role of RNA polymerase III in the process of transcription in eukaryotes?

Complete the flow chart on central dogma.

DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as

The first phase of translation is

Name the enzyme that facilitates opening of
DNA helix during transcription.

Which of the following statements is correct?

If the distance between two consecutive base
pairs is 0.34 nm and the total number of base
pairs of a DNA double helix in a typical
mammalian cell is 6.6 × 109 bp, then the length
of the DNA is approximately

Under which of the following conditions will there be no change in the reading frame of following mRNA?
5' AACAGCGGUGCUAUU 3'

Expressed Sequence Tags (ESTs) refers to :

Which of the following features of genetic code does allow bacteria to produce human insulin by
recombinant DNA technology?

Match the following genes of the Lac operon with their respective produces :

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
ov...

The shorter and longer arms of a submetacentric chromosome are referred to as:

Purines found both in DNA and RNA are:

The experimental proof for semi-conservative
replication of DNA was first shown in a

All of the following are part of an operon except

AGGTATCGCAT is a sequence from the coding
strand of a gene. What will be the corresponding
sequence of the transcribed mRNA?

Select the correct statement :

Select the correct match :

Select the correct match :

Many ribosomes may associate with a single
mRNA to form multiple copies of a polypeptide
simultaneously. Such strings of ribosomes are
termed as

If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is
deleted such that the length of the RNA becomes 998 bases, how many codons will be altered ?

The association of histone H1 with a nucleosome indicates :

During DNA replication, Okazaki fragments are used to elongate

Spliceosomes are not found in cells of :

The final proof for DNA as the genetic material came from the experiments of

Which of the following RNAs should be most abundant in animal cell ?

The equivalent of a structural gene is -

Which of the following rRNAs acts as structural RNA as well as ribozyme in bacteria ?

Taylor conducted the experiments to prove semiconservative mode of chromosome replication on

DNA-dependent RNA polymerase catalyzes transcription on one strand of the DNA which is called the

A molecule that can act as a genetic material must fulfill the traits given below, except

Which of the following is required as inducer(s) for the expression of Lac operon?

A complex of ribosomes attached to a single strand of RNA is known as :

Which one of the following is the starter codon ?

Gene regulation governing lactose operon of E.coli that involves the lac I gene product is

In sea urchin DNA, which is double stranded, 17% of the bases were shown to be cytosine, The percentages of the other three bases expected to be present in this DNA are

Balbiani rings are sites of :