MCQs in Modern Genetics -1.

These MCQs may facilitate your reading and to have better scores.  
At the end of this MCQs you may find the answers for these questions.

1. In which prokaryotes voluminous genetical works were made ?
        Kindly choose the Correct answer a) TMV –virus b) Phage c) Escherichia coli. d) Coliform bacteria

2. Who discovered the double helix DNA model ?
Kindly choose the Correct answer a) G.H.Khorana b) Mendel c) T.H.Morgan d) Watson and Crick.

3. About how many hereditary diseases in human beings were identified?
Kindly choose the Correct answer a) more than 300. b) less than 300 c) about 400 d) about 100

4. To obtain information about genetic characters in man which of the following help ?
Kindly choose the Correct answer a) biochemical test b) hybridization test c) pedigree analysis. d) Inbreeding

5. Sickle cells anaemia is due to –
Kindly choose the Correct answer a) autosomal gene. b) sex chromosomal gene c) vitamin deficiency d) hormone imbalance

6. Albinism is due to --
Kindly choose the Correct answer a) absence of melanin. b) absence of vitamins c) presence of melanin d) absence of hormone

7. Name the human disease due to autosomal dominant gene --
Kindly choose the Correct answer a) sickle cell anaemia b) thalasemia c) SCID d) Huntigton`s chorea.

8. Idiogram means the diagrammatic representation of ______.
Kindly choose the Correct answer a) genes b) chromosomes. c) graph showing heart defects d) brain

9. The chromosomes 4 and 5 belong to the group classified by karyotyping –
Kindly choose the Correct answer a) group A b) group B. c) group C d) group D

10. What is the name of mobile genetic elements ?
Kindly choose the Correct answer a) plasmids b) pili c) barr body d) transposons.

11. In karytyping the foetal cells are cultured with --
Kindly choose the Correct answer a) acetylcholine b) colchine. c) Hydrogen peroxide d) nitrous oxide

12. In human beings the largest chromosomes 1, 2 and 3 are included under the group
Kindly choose the Correct answer a) C b) D c) E d) A.

13. The humans which of the following is the largest group of chromosomes –
Kindly choose the Correct answer a) B b) C c) D d) G

14. In human beings the chromosomes 13, 14, 15 are –
Kindly choose the Correct answer a) acrocentric b) metacentric. c) telocentric d) sub metacentric

15. In man chromosome Y belongs to-
Kindly choose the Correct answer a) group A b) group C c) group D d) group G.

16. In human beings the X chromosomes belongs to
Kindly choose the Correct answer a) group A b) group C. c) group F d) group G.

17. Mobile genetic elements (Transposons) were first visualized by –
    Kindly choose the Correct answer a) G. H. Khorana b) T. H. Morgan c) Barnara Meclintock. d) Watson and Crick

18. In genetic engineering the vector used is - -
Kindly choose the Correct answer a) a plasmid DNA segment of virus. b) a plasmid DNA segment of bacteria c) a plasmid DNA segment of bacteria or virus. d) a plasmid DNA segment of nematode

19. The number of nucleotides present in a plasmid is –
Kindly choose the Correct answer a) 100 -200 b) 200-300. c) 300-400 d) 400-500

20. An erythroblastic anaemia due to homozygous recessive gene expression in children is
Kindly choose the Correct answer a) Sickle cell anaemia b) Thalassemia. c) Agammaglobulinemia d) Albinism

           

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