midterm 2-2008 (1)

midterm 2-2008 (1) - Last Name First Name Lab(day and time...

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Last Name: _______________________________, First Name: __________________ Lab (day and time): ________________________, TAs: _______________________ BISC 320 Midterm 2, Oct 27, 2008 Print your last and first name on every page. Answers written in pencil are NOT eligible for re-grade. Multiple Choice (3 pts. each) Choose the BEST answer . 1) After replication of any DNA molecule, the relationship of the two nascent strands to each other is: a) antiparallel b) identical c) complementary d) conservative 2) Replicative DNA polymerases differ from translesion DNA polymerases in that replicative polymerases: a) never make errors b) contain a 3’ to 5’ exonuclease activity c) synthesize phosphodiester bonds d) act during S-phase 3) Translesion DNA synthesis (TLS) differs from Mismatch Repair (MMR), Nucleotide- Excision Repair (NER), and Base-Excision Repair (BER) in that TLS: a) always creates mutations b) never creates mutations c) requires DNA polymerase and DNA ligase d) does not actually repair damage 4) What is the essential purpose of homologous recombination during meiosis? a) double strand break repair after replication b) pairing of homologous chromosomes c) crossing-over d) cohesion of sister chromatids 5) Which of the following is not involved in processing of Okazaki fragments: a) DNA Polymerase b) DNA Ligase c) DNA Primase d) RNAseH 6) In prokaryotic cells, detection of hemi-methylated DNA is required by which of the following processes: a) homologous recombination b) mismatch repair c) photoreactivation of thymine dimmers d) base excision repair
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midterm 2-2008 (1) - Last Name First Name Lab(day and time...

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