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 - 2
Question 1:
Which one of the following statements about the particular entity is true ?
(a) Centromere is found in animal cells, which produces aster during cell division.
(b) The gene for producing insulin is present in every body cell.
(c) Nucleosome is formed of nucleotides.
(d) DNA consists of core of eight histones
Correct Answer – (B)
Question 2:
Which of the following is initiation codon?
(a) UAG
(b) AUC
(c) AUG
(d) CCU
Correct Answer – (C)
Question 3:
Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
(a) AUG, ACG – Start/methionine
(b) UUA, UCA – Leucine
(c) GUU, GCU – Alanine
(d) UAG, UGA – Stop
Correct Answer – (D)
Question 4:
Which is required for protein synthesis?
(a) Initiation codon
(b) Peptidyl transferase
(c) GTP
(d) All the above
Correct Answer – (D)
Question 5:
Sickle cell anemia is caused by change in
(a) A single base
(b) a chain of hemoglobin
(c) Frame shift mutation
(d) Whole ß chain of hemoglobin
Correct Answer – (A)
MCQ Questions Class 12 Molecular Basis of Inheritance With Answers
Question 6:
What are the structures called that give an appearance as ‘beads-on-string’ in the chromosomes when viewed under electron microscope?
(a) Genes
(b) Nucleotides
(c) Nucleosomes
(d) Base pairs
Correct Answer – (C)
Question 7:
Purines found both in DNA and RNA are
(a) cytosine and thymine
(b) adenine and thymine
(c) adenine and guanine
(d) guanine and cytosine
Correct Answer – (C)
Question 8:
Haploid represents
(a) Haploid chromosome set
(b) Complete chromosome set
(c) Diploid chromosome set
(d) AH the genes present in a population set
Correct Answer – (A)
Question 9:
The mitochondrial DNA differs from nuclear DNA in
(а) Being linear
(b) Having A = T and C = G
(c) Being highly twisted
(d) Lacking binding of histones
Correct Answer – (D)
Question 10:
Regulated unit of genetic material is called
(a) Operon
(b) Operater gene
(c) Regulator gene
(d) Promoter gene
Correct Answer – (A)
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