BIO 411 FINAL EXAM QUESTIONS AND CORRECT ANSWERS LATEST UPDATED | VERIFIED SOLUTIONS | GUARANTEED SUCCESS.

BIO 411 FINAL EXAM QUESTIONS AND CORRECT ANSWERS LATEST UPDATED | VERIFIED SOLUTIONS | GUARANTEED SUCCESS. What is the order of processes that support the central dogma? A. DNA replication, translation, protein synthesis B. DNA replication, transcription, translation C. Transcription, DNA replication, translation D. DNA replication, translation, transcription - ANSWER B Why aren't nucleosides incorporated into DNA? A. The bases are not fully assembled. B. The sugar is not in the right form. C. There are no phosphates to make the phosphodiester bonds. D. The peptide bonds don't form. - ANSWER c In the DNA of certain bacterial cells, 16% of the nucleotides are adenine. What are the percentages of the other nucleotides in the bacterial DNA? A. 16% thymidine, 34% guanine, 34% cytosine The strands in a DNA molecule are: (choose all that apply) A. antiparallel. B. complementary. C. identical. D. perpendicular. E. covalently bonded to each other. - ANSWER A and B A template strand of DNA is read in the direction in order to direct synthesis of B. 34% uracil, 16% guanine, 16% cytosine C. 34% thymidine, 34% guanine, 16% cytosine D. 34% thymidine, 16% guanine, 34% cytosine - ANSWER a RNA in the direction. Transcription continues until: A.Because RNA uses uracil instead of thymine, it cannot hold genetic Based on what you know about eukaryotic cells, what is one of the arguments against using RNA as the genetic storage molecule? information. B. RNA has a negatively charged sugar phosphate backbone. C. The structure of RNA does not allow for double-stranded base pairing. D. There is no current mechanism to package enough RNA to encode all the information needed by the cell. E. The secondary structure of RNA prevents its replication before cell division. - ANSWER D Among the possible errors listed below, which would prevent an mRNA with the correct sequence from being translated appropriately? A. The 5 cap was not added. B. The DNA sequence was incorrect. C. The poly(A) tail was not formed. D. Either the 5 cap was not added or the poly(A) tail was not formed. E. None of the other answer options is correct. - ANSWER d What would happen if an enhancer sequence were mutated so that its binding partner was always bound and recruiting the RNA polymerase complex? A. No transcription would occur as the site is now blocked to other proteins. B. Transcription wouldn't change. C. No transcription would occur because the mediator complex could not form. D. Transcription would occur continuously. - ANSWER d A. 3'-5'; 3'-5' B. 5'-3'; 3'-5' C. 3'-5'; 5'-3' D. 5'-3'; 5'-3' - ANSWER c A. all bases in the DNA are copied. B. a stop codon is encountered. C. a terminator sequence is encountered. D. a ribosome pulls RNA polymerase off the DNA. E. a transcription factor signals the end of the gene. - ANSWER c What feature of double-stranded DNA makes it necessary to have a leading strand and a lagging strand during replication? Why is DNA ligase important for a cell? Select all that apply. What would happen to the variation between organisms in a population if their DNA polymerase did not have a proofreading function? D. It unwinds DNA. - ANSWER a and c A. The amount of variation would increase. B. The amount of variation would decrease. C. The amount of variation would stay the same. - ANSWER A A. It joins Okazaki fragments. B. It relieves the stress of DNA unwinding. C. It joins DNA together from different origins of replication.