Q201
Allen
9. Molecular Basis of Inheritance
MCQ
Which of the following RNAs should be most abundant in animal cell ?
A.
t-RNA
B.
m-RNA
C.
mi-RNA
D.
r-RNA
Q202
Allen
9. Molecular Basis of Inheritance
MCQ
What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ?
A.
The smaller the fragment size, the farther it moves
B.
Positively charged fragments move to farther end
C.
Negatively charged fragments do not move
D.
The larger the fragment size, the farther it moves
Q203
Allen
9. Molecular Basis of Inheritance
MCQ
DNA replication in bacteria occurs:-
A.
Within nucleolus
B.
Prior to fission
C.
Just before transcription
D.
During S phase
Q204
Allen
9. Molecular Basis of Inheritance
MCQ
Spliceosomes are not found in cells of:-
A.
Fungi
B.
Animals
C.
Bacteria
D.
Plants
Q205
Allen
9. Molecular Basis of Inheritance
MCQ
The association of histone Hā with a nucleosome indicates:-
A.
DNA replication is occurring.
B.
The DNA is condensed into a Chromatin Fibre.
C.
The DNA double helix is exposed.
D.
Transcription is occurring.
Q206
Allen
9. Molecular Basis of Inheritance
MCQ
The experimental proof for semiconservative replication of DNA was first shown in a:-
A.
Fungus
B.
Bacterium
C.
Plant
D.
Virus
Q207
Allen
9. Molecular Basis of Inheritance
MCQ
Select the correct match :-
A.
Alec Jeffreys - Streptococcus pneumoniae
B.
Alfred Hershey and ā TMV Martha Chase
C.
Matthew Meselson ā Pisum sativum and F. Stahl
D.
Francois Jacob and ā Lac operon Jacques Monod
Q208
Allen
9. Molecular Basis of Inheritance
MCQ
Select the correct Match :-
A.
Ribozyme ā Nucleic acid
B.
F2 Ć Recessive parent ā Dihybrid cross
C.
T.H. Morgan ā Transduction
D.
G. Mendel ā Transformation
Q209
Allen
9. Molecular Basis of Inheritance
MCQ
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA ?
A.
AGGUAUCGCAU
B.
UGGTUTCGCAT
C.
ACCUAUGCGAU
D.
UCCAUAGCGUA
Q210
Allen
9. Molecular Basis of Inheritance
MCQ
All of the following are part of an operon except :-
A.
an operator
B.
structural genes
C.
an enhancer
D.
a promoter
Q211
Allen
9. Molecular Basis of Inheritance
MCQ
Purines found both in DNA and RNA are :-
A.
Adenine and thymine
B.
Adenine and guanine
C.
Guanine and cytosine
D.
Cytosine and thymine
Q212
Allen
9. Molecular Basis of Inheritance
MCQ
Under which of the following conditions will there be no change in the reading frame of following mRNA ? 5'AACAGCGGUGCUAUU3'
A.
Insertion of G at 5th position
B.
Deletion of G from 5th position
C.
Insertion of A and G and 4th and 5th positions respectively
D.
Deletion of GGU from 7th, 8th and 9th positions
Q213
Allen
9. Molecular Basis of Inheritance
MCQ
Expressed Sequence Tags (ESTs) refers to :-
A.
Genes expressed as RNA
B.
Polypeptide expression
C.
DNA polymorphism
D.
Novel DNA sequences
Q214
Allen
9. Molecular Basis of Inheritance
MCQ
Match the following genes of the Lac operon with their respective products :-
| Column-I | Column-II | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
a-i, b-iii,c-ii,d-iv
B.
a-iii,b-i, c-ii, d-iv
C.
a-iii,b-i, c-iv, d-ii
D.
a-iii,b-iv,c-i, d-ii
Q215
Allen
9. Molecular Basis of Inheritance
MCQ
What will be the sequence of mRNA produced by the following stretch of DNA? 3'ATGCATGCATGCATG5' Template strand 5'TACGTACGTACGTAC3' Coding strand
A.
3'AUGCAUGCAUGCAUG5'
B.
5'UACGUACGUACGUAC3'
C.
3'UACGUACGUACGUAC5'
D.
5'AUGCAUGCAUGCAUG3
Q216
Allen
9. Molecular Basis of Inheritance
MCQ
Match the following RNA polymerase with their transcribed products :-
| Column-I | Column-II | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
a-i, b-iii,c-ii
B.
a-i, b-ii, c-iii
C.
a-ii,b-iii,c-i
D.
a-iii,b-ii,c-i
Q217
Allen
9. Molecular Basis of Inheritance
MCQ
From the following, identify the correct combination of salient features of Genetic Code :-
A.
Universal, Non-ambiguous, Overlapping
B.
Degenerate, Overlapping, Comma less
C.
Universal, Ambiguous, Degenerate
D.
Degenerate, Non-overlapping, Nonambiguous
Q218
Allen
9. Molecular Basis of Inheritance
MCQ
Which scientist experimentally proved that DNA is the sole genetic material in bacteriophage ?
A.
Beadle and Tatum
B.
Meselson and Stahl
C.
Hershey and Chase
D.
Jacob and Monod
Q219
Allen
9. Molecular Basis of Inheritance
MCQ
In the process of transcription in Eukaryotes, the RNA polymerase I transcribes :-
A.
mRNA with additional processing, capping and tailing
B.
tRNA, 5 S rRNA and snRNAs
C.
rRNAsā28 S, 18 S and 5.8 S
D.
Precursor of mRNA, hnRNA
Q220
Allen
9. Molecular Basis of Inheritance
MCQ
What initiation and termination factors are involved in transcription in prokaryotes ?
A.
Ļ and Ļ, respectively
B.
Ī± and Ī², respectively
C.
Ī² and Ī³, respectively
D.
Ī± and Ļ, respectively
Q221
Allen
9. Molecular Basis of Inheritance
MCQ
Which of the following statements is correct?
A.
Adenine does not pair with thymine
B.
Adenine pairs with thymine through two H-bonds
C.
Adenine pairs with thymine through one H-bond
D.
Adenine pairs with thymine through three H-bonds
Q222
Allen
9. Molecular Basis of Inheritance
MCQ
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 $6 . 6 \times 1 0 ^ { 9 }$ bp, then the length of the DNA is approximately: -
A.
2.7 meters
B.
2.0 meters
C.
2.5 meters
D.
2.2 meters
Q223
Allen
9. Molecular Basis of Inheritance
MCQ
Name the enzyme that facilitates opening of DNA helix during transcription: -
A.
RNA polymerase
B.
DNA ligase
C.
DNA helicase
D.
DNA polymerase
Q224
Allen
9. Molecular Basis of Inheritance
MCQ
The first phase of translation is :-
A.
Recognition of an anti-codon
B.
Binding of mRNA to ribosome
C.
Recognition of DNA molecule
D.
Aminoacylation of tRNA
Q225
Allen
9. Molecular Basis of Inheritance
MCQ
In gel electrophoresis, separated DNA fragments can be visualized with the help of
A.
Ethidium bromide in infrared radiation
B.
Acetocarmine in bright blue light
C.
Ethidium bromide in UV radiation
D.
Acetocarmine in UV radiation