For questions 16-20: select from the choices below. Each letter can only be used

Question

For questions 16-20: select from the choices below. Each letter can only be used once. A. Rho factor B. Sigma factor C. Paralogous genes D. Orthotogous genes E. Telomerase RNA polymerase subunit necessary for promoter recognition. Reverse transcriptase associated with replication of eukaryotic chromosomes. Similar sequences and same function Similar sequences but different function. Plays a role in transcriptional termination of some genes Multiple Choice The peptidyl transferase activity of the ribosome is located in A. a specific protein that is found in the large ribosomal subunit B. a specific protein that is found in the small ribosomal subunit C. the elongation factor EF-Tu D. a specific domain of 23s rRNA E. a region of tRNA The uptake of DNA released from a cell would most likely be the result of a process called ___, while DNA exchange that involves cell-to-cell contact results from a process known as ___. A. transformation/conjugation. B. transduction/conjugation. C. conjugation/transformation. D. transformation/transduction Wobble base pairing occurs between: (nucleotide numbering expressed below uses the conventional 5' rightarrow 3' directionality) A. the second nucleotide of the codon and the socond nucleotide of the aniicodon B. the first nucleotide of the codon and the third nucleotide of the anticodon C. the third nucleotide of the codon and the second nucleotide of the anticodon D. the second nucleotide of tho codon and the first nucleotide of the anticodon E. the third nucleotide of the codon and the first nucleotide of the anticodon The deoxyadenosine methylase (dam) enzyme of E. coli mediates the post-replicative methylation of newly synthesized DNA. The SeqA protein of E. cob binds with high affinity to hemi-methylated DNA to control the timing of the initiation o1 DNA replication. Suppose that the gene encoding the dam methylase acquired a mutation that dramatically increased the amount of methylase activity in the cell. How would the timing of initiation of the next round of DNA replication be affected by the mutation? Would the time required before the next round of DNA synthesis increase or decrease? A. It would decrease due to more persistent SeqA binding. B. It would increase due to less persistent SeqA binding C. It would decrease due to less persistent SeqA binding D. It would increase due to more persistent SeqA binding E. It would not be affected.

Explanation / Answer

Sigma factor - RNA polymerase subunit necessary for promoter recognition.

Telomerase - Reverse Transcriptase associated with replication of eukaryotic chromosomes

Orthologous genes - Similar sequences and same function

Paralogous genes - Similar sequences but different function

Rho factor - Plays a role in transcriptional termination of some genes

Note: As per the guidelines we can answer only first question. So, I did not answer the remaining questions. Hope you can understand.

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