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Botany - Chromosomal Basis of Inheritance 5 Mark Creative Question Paper With Answer Key

12th Standard

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Biology

Time : 02:30:00 Hrs
Total Marks : 75

    5 Marks

    15 x 5 = 75
  1. "The process of arrangement if the same order genes more than one in the same chromosome."
    1. What is the process known as?
    2. Explain its types.

  2. Draw a flow chart depicting the various types of ploidy.

  3. Explain hyperploidy with its types.

  4. What is translocation? Write about its types.

  5. Write the important aspects about the chromosome behavior during meiosis.

  6. What are multiple alleles? Write the characteristics of multiple alleles.

  7. How sex is determined in papaya?

  8. How sex is determined in Sphaerocarpos?

  9. Explain how structural chromosomal aberration occurs of deletion.

  10. Explain structural chromosome aberration by inversion.


  11. Observe the figure above and answer the following questions.
    1. Mention the type of structural chromosomal aberration -Explain.
    2. What do both A and B represent?
    3. Bring out the differences between A and B
    4. What is it also called give reasons?

  12. Give an account on the conditions of Aneuploidy.

  13. On the account of historical development of chromosome theory who were the scientists involved to propose it?

  14. What are the types of crossing over?

  15. What is point mutation? Explain its types.

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