Select from the choices below. Each letter can only be used once. A. Rho factor

Question

Select from the choices below. Each letter can only be used once. A. Rho factor B. Sigma factor C. Paralogous genes D. Orthologous 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 second nucleotide of the anticodon 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 the 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

Lysogenic virus can integrate its genome into the host cell chromosome.

Restriction endonucleases bacterial innate immunity.

CRISPR/CAS Bacterial adaptive immunity.

Viruses are obligate intracellular parasite

Lyric viruses leave cell by causing lysis.

DNA sequences that direct selective transcription are called promoters.

Amino acid tRNA synthetase helps make sure that the current aa is being inserted.

The genes occurred in operon are transcribed to polycistronic mRNAs

Pyrimidine always base pair with purine.

Anticodons of tRNA form complementary bp.

Topoisomerase can release the supercoiling of DNA.

Hydroxyl group of the 3'c needed for the formation of phosphodiesterase bond.

2'-OH group present in ribonucleotides not in deoxy.

DNA Helicase unwinds the DNA during replication.

DNA Primase synthesize RNA.

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