Question

106. What process helps compact the DNA in a chromosome? A) anaphase promoting complex B) entry into S-phase of the cell cycle C) removal of the nuclear lamina D) removal of methyl groups from DNA E) histone de-acetylation 107. What does DNA Ligase do? A) removes mismatched nucleotides B) adds complimentary bases to single stranded DNA C) joins the ends of chromosomes together D) forms a phosphodiester covalent bond between adjacent nucleotides E) chews up single stranded DNA 108. Splicosomes are complexes that do what? A) remove exons from pre-mRNA. B) add segments from other genes to same mRNA. C) remove introns from pre-mRNA. D) remove the RNA binding proteins that prevent translation. E) target the RNA for degradation. 109. How many amino acids are in a protein that comes from an open reading frame containing 300 nucleotides? A. 300 B. 299 C. 100 D. 99 E. 900 110. Which list of molecules is most directly involved in translation A) protein, amino acids, DNA B) cGMP, G Protein Coupled Receptor, G-protein C) DNA, histones, chromatin D) mRNA, tRNA, rRNA 111. Ubiquination of a protein is associated with what? A) Increased stability B) localization to membranes C) localization to nucleus D) degradation of protein through lysosome pathway E) degradation of protein through proteosomes 112. What is an Enhancer? A) a trans-acting factor that binds RNA polymerase B) a trans-acting factor that binds other transcription factors C) a cis-acting factor located in close proximity to the promoter D) a cis-acting factor comprised of a nucleic acid sequence far from the promoter E) a cis-acting factor consisting of proteins near the operator site
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Answer 1