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Free download in PDF Molecular Basis of Inheritance GK Questions with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
The type of RNA specifically responsible for directing the proper sequence of amino acids in protein synthesis is
[A]
Ribosomal RNA
[B]
Messenger RNA
[C]
Chromosomal RNA
[D]
None
(2)
The nucleic acid synthesis takes place in
[A]
3’-5’ direction
[B]
5’-3’ direction
[C]
Both ways
[D]
Any direction
(3)
Where is the location of promoter in the transcription unit?
[A]
Towards 5’ end of template strand
[B]
Towards 3’ end of template strand
[C]
Towards 5’ end of coding strand
[D]
Towards 3’ end of coding strand
Answer: Towards 5’ end of template strand
(4)
Which molecule acts as an adaptor during translation?
[A]
mRNA
[B]
rRNA
[C]
tRNA
[D]
hnRNA
(5)
Who confirmed transforming principle experimentally?
[A]
Oswald Avery
[B]
Collin McLeod
[C]
Maclynn McCarty
[D]
All of them together
Answer: All of them together
(6)
What is the product of metabolism of galactose in lac operon?
[A]
Glucose + Lactose
[B]
Glucose + Glucose
[C]
Glucose + Fructose
[D]
None
(7)
What is the name of segment of DNA capable of producing a polypeptide chain
[A]
Recon
[B]
Cistron
[C]
Muton
[D]
None of these
(8)
Who experimentally proved semi conservative model of DNA replication
[A]
Meselson & Stahl
[B]
Frederic Griffith
[C]
Watson & Crick
[D]
Chargaff
(9)
The codon AUG stands for which amino acid
[A]
Tryptophan
[B]
Glycine
[C]
Lysine
[D]
Methionine
(10)
How many sense codons are there in genetic code
[A]
64
[B]
61
[C]
62
[D]
60
(11)
When did human genome project start?
[A]
1989
[B]
1990
[C]
1988
[D]
None of these
(12)
Who named the term nucleic acid to the content of chromatin?
[A]
Frederic Altmann
[B]
Oswald Awery
[C]
Gregor Mendel
[D]
None
(13)
Which enzymes prevents the binding of unwound DNA strands
[A]
DNA ligase
[B]
DNA polymerase
[C]
SSB protein
[D]
Helicase
(14)
RNA polymerase III transcribes
[A]
tRNA
[B]
mRNA
[C]
hnRNA
[D]
rRNA
(15)
Degeneracy of genetic code is due to
[A]
First nitrogen base
[B]
Second nitrogen base
[C]
Third nitrogen base
[D]
First & second nitrogen base
Answer: Third nitrogen base
(16)
Number of base pairs in a mini satellite is approximately
[A]
6-12 bp
[B]
12-18 bp
[C]
18- 24 bp
[D]
None
(17)
The post transcriptional process involves
[A]
Splicing
[B]
Tailing
[C]
Capping
[D]
All of these
(18)
How many naturally occurring amino acids are there
[A]
20
[B]
21
[C]
22
[D]
None
(19)
How many stop codons are there?
(20)
Which gene produces permease in Lac operon?
[A]
Z-gene
[B]
A- gene
[C]
Y-gene
[D]
P-gene
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