CBSE Class 12 Molecular Basis of Inheritance Multiple Choice Questions with Answers. MCQ Questions Class 12 Molecular Basis of Inheritance with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT MCQ questions Class 12 Molecular Basis of Inheritance with Answers to know their preparation level.
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MCQ Questions Class 12 Molecular Basis of Inheritance with Answers - Set - 1
Question 1:
The first gene isolated by shapiroet-al in 1969 was the gene of
(a) Insulin gene of .mouse
(b) Nitrogenase of cynobacteria
(c) Alamine of tRNA of yeast
(d) Lac operon of E.Coli
Correct Answer – (D)
Question 2:
Synthesis of any protein in a cell is determined by
(a) Types of ribosomes
(b) Mitochondria
(c) Sequence of nucleotides in DNA
(d) Sugar and phosphate of DNA
Correct Answer – (C)
Question 3:
Which of the RNA is smallest and used in feeding of amino acid to a ribosome?
(a) hnRNA
(b) tRNA
(c) mRNA
(d) rRNA
Correct Answer – (B)
Question 4:
Cistron is
(a) Functional unit of RNA
(b) Non-functional unit of RNA
(c) Functional unit of DNa that specifies a polypeptide chain
(d) Non-functional unit of DNA
Correct Answer – (C)
Question 5:
DNA structure was discovered by
(a) Weismann
(b) Watson and Crick
(c) Har Gobind Khorana
(d) Sutton
Correct Answer – (B)
MCQ Questions Class 12 Molecular Basis of Inheritance With Answers
Question 6:
The element required for the activation of DNA and DNA polymerase is
(a) Ca2+
(b) Mg2+
(c) K+
(d) Cu2+
Correct Answer – (B)
Question 7:
Initiation codon in higher plants is
(a) UAG
(b) AUG
(c) AGU
(d) GAU
Correct Answer – (B)
Question 8:
Transcription is the formation of
(a) mRNA
(b) tRNA
(c) rRNA
(d) Protein
Correct Answer – (A)
Question 9:
Enzyme responsible for DNA replication
(a) Polymerase
(b) Proteolytic
(c) Ligase
(d) Carboxylase
Correct Answer – (A)
Question 10:
Nucleic acids are polymer of
(a) Nucleosides
(b) Proteins
(c) Glycoproteins
(d) Nucleotides
Correct Answer – (D)
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