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Modern Genetics - Important Question Paper

12th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 50

    Part A

    10 x 1 = 10
  1. Sickle cell anaemia is due to

    (a)

    autosomal gene

    (b)

    sex chromosmal gene

    (c)

    vitamin deficiency

    (d)

    hormone imbalance

  2. Albinism is due to

    (a)

    absence of melanin

    (b)

    absence of vitamins

    (c)

    presence of melanin

    (d)

    absence of hormone

  3. Name the human disease due to autosomal dominant gene

    (a)

    sickle cell anaemia

    (b)

    thalasemia

    (c)

    SCID

    (d)

    huntington's chorea

  4. Idiogram means

    (a)

    Diagrammatic representation of genes

    (b)

    Diagrammatic representation of  chromosome

    (c)

    Graph showing heart defect

    (d)

    electro cardiogram

  5. In human choromosome karyotyping the choromosomes 4 and 5 belong to group

    (a)

    A

    (b)

    B

    (c)

    C

    (d)

    D

  6. The chemical used to stop the mitosis is at metaphase

    (a)

    colchine

    (b)

    colchicine

    (c)

    colamide

    (d)

    bromide

  7. The nutritive solution which is used for culture of foetal cells is

    (a)

    Phytohaemarrage

    (b)

    Phytohaematin

    (c)

    Phytohaemonin

    (d)

    Phytohaemagglutinin

  8. The 4 and 5 chromosomes of human Karyo typing are of this type

    (a)

    metacentric

    (b) submeta centric
    (c)

    acrocentric

    (d) acentric
  9. The Karyotyping method which is used to identity the sex of individuals during pregnancy is

    (a)

    allantocentric

    (b)

    chromocentesis

    (c)

    aminocentesis

    (d)

    utero centesis

  10. Octanes,xylenes camphors and toluences are destroyed by

    (a)

    Paseudomona bacterium

    (b)

    Gibberella fusarium

    (c)

    Bacillus subtilis

    (d)

    Sacchoro myces cerevisicae

  11. Part B

    6 x 2 = 12
  12. Mention the languages, which help in bio-informatics.

  13. What is human gene bank? / Genome database?

  14. What is protein Data Bank?

  15. How to produce viruses as effective vectors?

  16. What are the scientific inventions that helped in paving way for origin of Bio - informatics?

  17. Write about the structure of haemoglobin molecule

  18. Part C

    6 x 3 = 18
  19. Mention any two uses of karyotyping

  20. What is called DNA segmenting?

  21. What is meant by pedigree chart?

  22. Identify reasons for causes of sickle cell anaemia.

  23. Write a note on huntington's chorea.

  24. Write a note on SCID (or) Bubble boy syndrome.

  25. Part D

    2 x 5 = 10
  26. Explain karyo typing of human chromosomes (or) Write about seven groups of chromosomes in human.

  27. Write the scope of Genetic engineering.

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Reviews & Comments about Modern Genetics Important Question Paper In 12th Biology

Sadha 06-Dec-2018

Tamil medium question pappers only. My friend in+2, so I can the exams in reminder questions on important......

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