Molecular Basis of Inheritance MCQs | Molecular Basis of Inheritance GK Questions with Answers

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Questions
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

Answer:Messenger RNA
2 The nucleic acid synthesis takes place in
A 3’-5’ direction
B 5’-3’ direction
C Both ways
D Any direction

Answer: 5’-3’ 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

Answer:tRNA
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

Answer: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

Answer: Cistron
8 Who experimentally proved semi conservative model of DNA replication
A Meselson & Stahl
B Frederic Griffith
C Watson & Crick
D Chargaff

Answer:Meselson & Stahl
9 The codon AUG stands for which amino acid
A Tryptophan
B Glycine
C Lysine
D Methionine

Answer:Methionine
10 How many sense codons are there in genetic code
A 64
B 61
C 62
D 60

Answer:61
11 When did human genome project start?
A 1989
B 1990
C 1988
D None of these

Answer:1990
12 Who named the term nucleic acid to the content of chromatin?
A Frederic Altmann
B Oswald Awery
C Gregor Mendel
D None

Answer: None
13 Which enzymes prevents the binding of unwound DNA strands
A DNA ligase
B DNA polymerase
C SSB protein
D Helicase

Answer: SSB protein
14 RNA polymerase III transcribes
A tRNA
B mRNA
C hnRNA
D rRNA

Answer: tRNA
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

Answer:None
17 The post transcriptional process involves
A Splicing
B Tailing
C Capping
D All of these

Answer:All of these
18 How many naturally occurring amino acids are there
A 20
B 21
C 22
D None

Answer:20
19 How many stop codons are there?
A 3
B 2
C 4
D 5

Answer: 3
20 Which gene produces permease in Lac operon?
A Z-gene
B A- gene
C Y-gene
D P-gene

Answer: Y-gene

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