308 Questions 12-15

308 Questions 12-15 - 1 Distinguish between the terms"DNA...

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1. Distinguish between the terms “DNA repair” and “recombination”. 2. List and briefly explain three major causes for mutation in DNA. 3. Explain how errors in DNA replication can lead to mutations. 4. Distinguish between the effects of mutations on the somatic and germ cells of multicellular organism. 5. List the various types of DNA repair mechanism (we have mentioned seven). 6. Give the detailed description of the base excision (or nucleotide excision) repair process in bacteria. 7. What is the direction of excision by DNA polymerase I during nucleotide excision? 8. Describe the mismatch repair process of bacteria (pay attention at the ways in which the daughter and parent strand are recognized by repair system). 9. Describe briefly the mechanism of direct reversal of damage in bacteria. 10.Define and briefly explain recombination repair. 11. What is SOS repair mechanism, when is it used (induced) and why is it important? 12.Describe the term “non-homologous end joining” and explain how this
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308 Questions 12-15 - 1 Distinguish between the terms"DNA...

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