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Molecular Basis Of Inheritance

394 Questions Start Allen Test
All Exams Allen
Q76 Allen 3. RNA, TRANSCRIPTION MCQ
Which may be attached with Adenine base in RNA ?
A.
Guanine
B.
Cytosine
C.
Uracil
D.
Thymine
Q77 Allen 3. RNA, TRANSCRIPTION MCQ
In the base sequence of one strand of DNA is CAT, TAG , CAT, CAT, GAC what would be the base sequence of its complementary m-RNA?
A.
GUA, GUA, CUG, AUC, CUG
B.
AUG, CUG, CUC, GUA, CUG
C.
GUA, AUC, GUA, CUG
D.
GUC, CUG, CUG, CUA, CUU
Q78 Allen 3. RNA, TRANSCRIPTION MCQ
The process by which DNA of the nucleus passes genetic information to m-RNA is called?
A.
Transcription
B.
Translocation
C.
Translation
D.
Transportation
Q79 Allen 3. RNA, TRANSCRIPTION MCQ
A sequence of three consecutive bases in a t-RNA molecule which specifically binds to a complementary codon sequence in m RNA is known as?
A.
Triplet
B.
Non - sense codon
C.
Anti codon
D.
Termination codon
Q80 Allen 3. RNA, TRANSCRIPTION MCQ
t-RNA attach to larger subunit of ribosomes with the help of which loop :-
A.
DHU āˆ’ loop
B.
T Ļˆ C loop
C.
Anticodon loop
D.
Minor loop
Q81 Allen 3. RNA, TRANSCRIPTION MCQ
In three dimensional view the molecule of t-RNA is:-
A.
L-shaped
B.
S-shaped
C.
Y- shaped
D.
E-shaped
Q82 Allen 3. RNA, TRANSCRIPTION MCQ
During transcription, the DNA site at which RNA polymerase binds is called?
A.
Promoter
B.
Regulator
C.
Receptor
D.
Enhancer
Q83 Allen 3. RNA, TRANSCRIPTION MCQ
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:-
A.
TATGC
B.
TCTGG
C.
UAUGC
D.
UATGC
Q84 Allen 3. RNA, TRANSCRIPTION MCQ
Which form of RNA has a structure resembling clover leaf ?
A.
rRNA
B.
hnRNA
C.
mRNA
D.
tRNA
Q85 Allen 3. RNA, TRANSCRIPTION MCQ
Which one of the following makes use of RNA as a template to synthesize DNA?
A.
DNA dependant RNA polymerase
B.
DNA polymerase
C.
Reverse transcriptase
D.
RNA polymerase
Q86 Allen 3. RNA, TRANSCRIPTION MCQ
The enzyme responsible for transcription is
A.
DNA polymerase-I
B.
RNA polymerase
C.
Reverse transcriptase
D.
DNA polymerase-III
Q87 Allen 3. RNA, TRANSCRIPTION MCQ
If the base sequence in DNA is 5' AAAA 3' then the bases sequence in m-RNA is :-
A.
5' UUUU 3'
B.
3' UUUU 5'
C.
5' AAAA 3'
D.
3' TTTT 5'
Q88 Allen 3. RNA, TRANSCRIPTION MCQ
Correct order of molecular weight is :-
A.
DNA < r-RNA < t-RNA
B.
DNA < m-RNA < r-RNA
C.
t-RNA < m-RNA < DNA
D.
t-RNA < DNA < m-RNA
Q89 Allen 3. RNA, TRANSCRIPTION MCQ
The genes are responsible for growth and differentiation in an organism through regulation of :-
A.
Translocation
B.
Transformation
C.
Transduction and translation
D.
Translation and transcription BMI084
Q90 Allen 3. RNA, TRANSCRIPTION MCQ
Method by which information reaches from DNA to RNA is ?
A.
Transcription
B.
Translation
C.
Transformation
D.
Transduction
Q91 Allen 3. RNA, TRANSCRIPTION MCQ
DNA acts as a template for synthesis of :-
A.
RNA
B.
DNA
C.
Both (1) and (2)
D.
Protein
Q92 Allen 3. RNA, TRANSCRIPTION MCQ
Which is soluble RNA :-
A.
hnRNA
B.
rRNA
C.
mRNA
D.
tRNA
Q93 Allen 3. RNA, TRANSCRIPTION MCQ
Portion of gene which is transcribed but not translated is ?
A.
exon
B.
intron
C.
cistron
D.
codon
Q94 Allen 3. RNA, TRANSCRIPTION MCQ
The smallest RNA is :-
A.
r-RNA
B.
m-RNA
C.
t-RNA
D.
nuclear RNA
Q95 Allen 3. RNA, TRANSCRIPTION MCQ
The most abundant RNA of cell is :-
A.
r-RNA
B.
t-RNA
C.
m-RNA
D.
None of these
Q96 Allen 3. RNA, TRANSCRIPTION MCQ
One strand of DNA (non template) has base sequence CAG, TCG, GAT. What will be the sequence of bases in m-RNA?
A.
AGC, CTA, CTA
B.
GTC, AGC, CTC
C.
CAG. UCG. GAU
D.
GAC. TAG. CTA
Q97 Allen 3. RNA, TRANSCRIPTION MCQ
Reverse transcription was discovered by :-
A.
Watson and Crick
B.
Khorana
C.
Temin an Baltimore
D.
Miescher
Q98 Allen 3. RNA, TRANSCRIPTION MCQ
Mature eukaryotic m-RNA is recognised by:-
A.
Shine Dalgarno sequence at 5'end
B.
7-methyl guanosine at 5' end and polyadenine bases at 3'end
C.
Anti shine Dalgarno sequence at 5'end
D.
Presence of coding and noncoding sequence
Q99 Allen 3. RNA, TRANSCRIPTION MCQ
Transcription unit in DNA is composed of :-
A.
Promoter
B.
Structural gene
C.
Terminator
D.
AIl
Q100 Allen 3. RNA, TRANSCRIPTION MCQ
In DNA promoter is the site for the initiation of :-
A.
Replication
B.
Translation
C.
Transcription
D.
Both (2) and (3)