BBCCT-117 EM 2026 SOLVED ASSIGNMENT

Description

Assignment

GENE ORGANISATION, REPLICATION AND REPAIR

Course Code: BBCCT-117

Assignment code: BBCCT-117/TMA/2026

(Valid from 1st January, 2026 to 31st December, 2026)

Note: Attempt all questions. The marks for each question are indicated against it. For any question worth 2 marks, the word limit is 50 words, for 5 marks question it is 100 words; and for 10 marks it is 250-300 words.

PART-(A) Maximum marks: 50

1 Explain DNA melting, Tm and its significance.

2 Write a note on types of promoters in a prokaryotic gene.

3 What are the various functions of chromatin? How histone proteins help in chromatin compaction?

4 (a) Draw and label structure and parts of chromosome.

(b) Explain the chemistry behind phosphodiester bond formation

5 Differentiate between prokaryotic and eukaryotic DNA polymerases.

PART-(B) Maximum marks: 50

1 Describe the Holliday model for homologous recombination.

2 Explain the process of replication in prokaryotes.

3 Explain the integration of λ-phage DNA into bacterial genome.

4 (a) What is RNA editing?

(b) Write a short note on chloroplast inheritance.

5 (a) Explain the base excision repair mechanism with the help of a suitable diagram.

(b) What is xeroderma pigmentosum? Describe the cause of the disease.