8. Which RNA molecule is NOT involved in the processes of transcription and translation? A. Messenger RNA B. Transfer RNA C. Ribosomal RNA D. Micro-RNA 9. Which of the following functional groups promote the separation of nucleotide fragments in gel electrophoresis? A. Phosphate groups B. Ribose moieties C. Purine bases D. Pyrimidine bases

8. Which RNA molecule is NOT involved in the processes of transcription and translation? A. Messenger RNA B. Transfer RNA C. Ribosomal RNA D. Micro-RNA 9. Which of the following functional groups promote the separation of nucleotide fragments in gel electrophoresis? A. Phosphate groups B. Ribose moieties C. Purine bases D. Pyrimidine bases

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter15: From Dna To Protein

Section: Chapter Questions

Problem 5TYK: Which of the following statements is false? a. GTP is an energy source during various stages of...

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1. Which of the following statements about the flow of genetic information is correct?A. Translation occurs prior to transcription during protein synthesis.B. During translation, the DNA template is converted to amino acids by the ribosomes.C. During transcription, the DNA template is converted to an RNA molecule by the enzyme RNA polymerase.D. Eukaryotic mRNA needs to be transported to the cytoplasm before the protein products are synthesized. 2. What is the main difference in the cell wall composition between eukaryotes and prokaryotes?A. Eukaryotic cell wall is mainly composed on sugar molecules while prokaryotic cell wall has both sugars and amino acids.B. Prokaryotic cell wall is mainly composed on sugar and lipid molecules while eukaryotic cell wall has both sugars and amino acidsC. Prokaryotic cell wall is mainly composed on sugar molecules while eukaryotic cell wall has both sugars and amino acids.D. Eukaryotic cell wall is mainly composed on sugar and lipid molecules while…
a. RNA Polymerase b. DNA Polymerase I c. DNA Polymerase III d. Single Strand binding protein e. Sigma Factor f. Ligase g. Peptidyl transferase h. Primers i. Aminoacyl synthetase j. Gyrase k. Release factors I. Rho factors m. AUG-fmet n. Initiation Factors Identify the following: 1. Catalyzes peptide bond formation between amino acids 2. Binds the amino acid to tis corresponding TRNA 3. Recognizes terminator region 4. Relaxes the tension created by the unwinding process. 5. Complements DNA nucleotides with RNA nucleotides. 6. Complements DNA nucleotides with deoxynucleotide triphosphates. 7. Recognizes UAA, UAG, UGA
1. What are the differences between DNA and RNA? 2. Which process involves copying of DNA information from template strand and produces mRNA strand that will be used for protein synthesis? 3. Based on the activity, what is the function of anticodon(TRNA) on protein synthesis? 4. What causes mutation? Is it always harmful? 5. Does a simple change on DNA sequence affect the resulting protein? Explain briefly.
14. What is an anticodon? a. The three tRNA bases that pair with a specific amino acid. b. The three tRNA bases that pair with a specific codon in an mRNA.. 16. c. The four rRNA bases that pair with a specific amino acid. d. The four DNA bases that pair with a specific amino acid. 15. Translation uses and a. mRNA, DNA, amino acids b. mRNA, TRNA, polypeptide chains c. mRNA. tRNA, polypeptide chains d. rRNA, tRNA, amino acids Which statement about Hershey and Chase's experiment is true? a. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with ³5S. b. It involved finding radioactivity inside bacteria infected with bacteriophage having protein labelled with ³2P. c. It involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with ³2P. d. It was to demonstrate that the protein case of a bacteriophage remained outside a bacterial cell after infection. 17. What happens in the presence of high cellular…
Antisense therapeutics are important because: Select one: O a. They only act at the ribosome O b. They can be easily delivered to their sight of activity after systemic administration They can be found in large quantities in the Golgi O c. O d. They hybridise to the antisense strand of a DNA transcript Oe. They are being use as a routinely administered medicine Ribozymes are good candidates as molecular therapeutics because Select one: O a. They are more stable than DNA is body fluids Ob. They can easily cross biological barriers with out the aid of a drug delivery system Oc. They retain secondary structure that may point to an evolutionary link between RNA and protei They are more stable than many proteins in body fluids They can be encoded into a plasmid and delivered as a DNA based construct give both answer only with little bit explanation Asap Thanks d. O e.
1. why is the ribosome a good drug target? 2. Tetracyclines: a. Where do first generation tetracyclines bind? b. Which step in protein translation do they inhibit? C. Why was it necessary to come out with a third generation tetracycline, and how are they different? 3. What are three ways that 2-deoxystreptamine (2-DOS) aminoglycosides can inhibit protein synthesis? 4. Chloramphenicol: a. Where does this drug bind? b. How does it inhibit protein synthesis?
8) Which of these describes the function of RNA polymerase? A. Amplifies the “message" by making multiple copies of an mRNA molecule after it has been transcribed from DNA B. Converts a protein sequence to mRNA
A DNA antisense strand contains the following nucleotide base sequence:CGA TTT GGT TGAFrom this, what is the nucleotide sequence of the mRNA strand that is transcribed? a. CGA UUU GGU UGA b. GCU AAA CCA ACU c. GCA AAA CCA ACT d. CGA TTT CCA ACT
1.1 What is the best description of a Ribosome? a. An enzyme that uses ribose to synthesize amino acids b. A protein/RNA complex that synthesizes protein c. A ribozyme that uses RNA as an enzyme to directly ligate free amino acids to tRNAs d. A multi-subunit protein complex that charges tRNA with amino acids 1.2 In RNA processing? A. Exons are added to the ends of mRNA for protection B. Intron sequences are removed before the mRNA is translated C. The RNA transcript that leaves the nucleus may be much longer than the original primary transcript D. All RNA transcripts will be processed and leave the nucleus.
1. The poly A tail of an mRNA molecule was removed by a deadenylase enzyme before it is recognized by the ribosomes. What will happen to this mRNA? a. It will not be translated anymore and will be degraded. b. It will get stuck in the small ribosomes since it will be difficult to set the proper start site. c. The reading frame of translation will change. d.The mRNA will be bound by the ribosomes for translation. 2. Which of the following is true regarding these DNA repair mechanisms? a. Non-homologous end joining is less likely to produce mutations than homologous recombination. b. Errors during DNA synthesis that are not caught by the replication machinery can be corrected by mismatch repair. c. DNA damage from chemical reactions cannot be undone. d. Proofreading from DNA polymerase I reduces the error rate in DNA to about 1 in 100 nucleotides. 3. Which of the following enzymes involved in DNA replication correctly pairs with its function? a. Helicase seals gaps between DNA…
Identify the sites of lagging strand synthesis. Select all that are true. B A 5 O a. C O b. D O c. A O d. B
A DNA antisense strand contains the following nucleotide base sequence: ACG TTT ATG GGT From this, what is the nucleotide sequence of the MRNA strand that is transcribed? a. TGC AAA TAC CCA b. UGC AAA UAC CCA C. AGC UUU AUC CCU d. ACG UUU AUG GGU