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Free download in PDF Gene its Nature Expression and Regulation Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
Transcription involves
[A]
Synthesis of RNA over DNA
[B]
Synthesis of DNA over RNA
[C]
Protein synthesis over ribosomes
[D]
Removal of worn out organelles by lysosomes
Answer: Synthesis of RNA over DNA
42
Nonsense codons take part in
[A]
Termination gene message for polypeptide synthesis
[B]
Synthesis of non protein amino acids
[C]
Initiating gene message for polypeptide synthesis
[D]
Helping Protein synthesis
Answer: Termination gene message for polypeptide synthesis
43
In proofreading during DNA replication
[A]
Wrong nucleotides are inserted
[B]
Wrong nucleotides are taken out
[C]
Wrong nucleotides are removed and correct once inserted
[D]
Mutations are prevented
Answer: Wrong nucleotides are removed and correct once inserted
44
Leading strand during DNA replication is formed
[A]
Ahead of replication
[B]
Continuously
[C]
First
[D]
In short segments
45
Okazaki fragments give rise to
[A]
Master strand
[B]
Sense strand
[C]
Lagging strand
[D]
Leading strand
46
Okazaki fragments are joined by
[A]
DNA polymerase III
[B]
DNA ligase
[C]
DNA polymerase II
[D]
DNA polymerase I
47
Okazaki segments are
[A]
Small segments of RNA
[B]
Small peptides
[C]
Small DNA segments
[D]
Small TN a segments formed over DNA template running in 3′-5′ direction
Answer: Small TN a segments formed over DNA template running in 3′-5′ direction
48
DNA strand is synthesized in the direction
[A]
5′-3′
[B]
3′-5′
[C]
1′-4′
[D]
6′-1′
49
In DNA replication the primer is
[A]
Small ribonucleotide polymer
[B]
Enzyme taking part in joining nucleotides to their complementary template bases
[C]
Small deoxyribonucleotide polymer
[D]
Helixdestabilising protein
Answer: Small ribonucleotide polymer
50
Topoisomerase is involved in
[A]
Separation of DNA strands
[B]
Producing Nick in DNA
[C]
Producing RNA primers
[D]
Joining of DNA segment
Answer: Producing Nick in DNA
51
The area of an winding and separation of DNA strands during replication is called
[A]
Replication fork
[B]
Origin
[C]
Initiation Point
[D]
Primer
52
Formation of RNA over the template of DNA is
[A]
Transcription
[B]
Trans version
[C]
Replication
[D]
Duplication
53
Number of codons in genetic triplet code is
[A]
64
[B]
32
[C]
16
[D]
4
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