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BBCCT-117 Assignment Master Index – Gene Organisation, Replication and Repair (2025)

BBCCT-117 Assignment Master Index – 2025

Welcome to the master index of solved assignment questions for the IGNOU course BBCCT-117 – Gene Organisation, Replication and Repair for the 2025 academic session. Each question has been answered in simple language suitable for students of all levels. Click on each question to view the full answer post.

Part A – Maximum Marks: 50

  1. Describe primary and secondary structure of DNA.
  2. Compare between prokaryotic and eukaryotic gene.
  3. Describe the packaging of DNA into higher order structures.
    1. Explain chromosome mapping and banding patterns.
    2. Discuss different modes of DNA replication.
  5. Write a detailed note on topoisomerases.

Part B – Maximum Marks: 50

  1. Compare replication in prokaryotes and eukaryotes.
    1. What are different types of recombination?
    2. Differentiate between transposons and retrotransposons.
  3. What is RNA editing?
  4. Explain different types of mutations.
    1. Comment on genomic and mitochondrial DNA damage
    2. What is xeroderma pigmentosum?

All answers are written in easy language and meet the IGNOU word count requirements. Feel free to use these as a reference for writing your own assignments.

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