Intro to Bio 1 Pearson Final Exam Multiple Choice Questions and Answers

Intro to Bio 1 Pearson Final Exam Multiple Choice Questions and Answers what type of bonding is responsible for maintaining the shape of the tRNA molecule - Correct Answer️️ -hydrogen bonding between base pairs what amino acid sequence will be generated based on the following mRNA codon sequence? (use amino acid chart) 5' AUG-UCG-UUA-UCC-CUA-UCU - Correct Answer️️ -met-ser-leu-ser-leu-ser accuracy in the translation of mRNA into the primary structure of a polypeptide depends on specificity in the - Correct Answer️️ -attachment of amino acids to tRNA and bonding of the anticodon to the codon when the function of the newly made polypeptide is to be secreted from the cell where it has been made, what must occur? - Correct Answer️️ -its signal sequence must target it to the Endoplasmic Reticulum, from which it goes to the Golgi which of the following types of mutation, resulting in an error in the mRNA just before the start of translation, is likely to have the most serious effect on the polypeptide product? - Correct Answer️️ -a deletion of 2 nucleotides which of the following, when taken up by the cell, binds to represssor so that the repressor no longer binds to the operator? - Correct Answer️️ -inducer the lactose operon is most likely to be transcribed when - Correct Answer️️ -the cyclic AMP and lactose levels are both high within the cellSMART PDF if you were to observe the activity of methylated DNA you would expect it to - Correct Answer️️ -have turned off or slowed down the process of transcription when DNA is compacted by histones into small fibers, the DNA is unable to interact with proteins required for gene expression. Therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. Which processes contribute to this dynamic activity? - Correct Answer️️ -methylation and phosphorylation of histone tails Tumor suppressor genes - Correct Answer️️ -can encode proteins that stimulate the cell cycle which of the following statements describes the lysogenic cycle of a lambda phage? - Correct Answer️️ -the phage geneome replicates along with the host genome which viruses have single stranded RNA that acts as a template for DNA synthesis - Correct Answer️️ -retroviruses A bacterium is infected with an experimentally constructed bacteriophage composed of the T2 phage protein coat and T4 phage DNA. The new phages produced would have - Correct Answer️️ -T4 protein and T4 DNA A gene that contains introns can be made shorter (but remain functional) for genetic engineering purposes by using - Correct Answer️️ -reverse transcriptase to reconstruct the gene from its mRNA which of the following best describes the complete sequence of steps occurring during every cycle of PCR? I) the primers hybridize to the target DNASMART PDF II) the mixture is heated to a high temperature to denture the double stranded target DNA III) Fresh DNA polymerase is added IV) DNA polymerase extends the primers to make a copy of the target