If a segment of DNA is 5’-TACGATTAG-3’, the RNA that results from the transcription of this segment will be a. 3’-TAGGATTAU-5’ b. 3’-ATGCTAATA-5’ c. 3’-UACGAUUAG-5’ d. 3’-AACGAUUAA-5’ e. 3’-AUGCUAAUC-5’ Answer: e Actinomycin D is an antibiotic drug that inhibits protein synthesis by blocking transcription. In some cells, the application of the drug does NOT affect the synthesis of certain proteins. Which of the following best explains such an occurrence? a. Not all proteins need tRNA molecules for their synthesis. b. The proteins that are made are using mRNA synthesized before application of the drug. c. Nuclear proteins do not require the cytoplasmic machinery of ribosomes. d. DNA transcription is not necessary for protein synthesis. e. Protein synthesis is blocked in the cytoplasm at the ribosome level. Answer: b (A) Transcription (B) Translation (C) Transformation (D) Replication (E) Reverse transcription 1. Process in which a protein is assembled at a Answer: B ribosome. 2. Process in which naked DNA is taken up by a Answer: C bacterial or yeast cell. 3. Process that results in the production of cDNA Answer: E from an RNA molecule. 4. Process in which RNA is produced by using a DNA template. Answer: A The nitrogenous base, adenine, is found In which three of the following? a. b. c. d. e. Proteins, chlorophyll, and vitamin A Proteins, ATP, and DNA ATP, DNA, and RNA Chlorophyll, ATP, and DNA Proteins, carbohydrates, and ATP Answer: c Central Dogma tRNA P A (A) Transcription (B) Translation (C) Transformation (D) Replication (E) Reverse transcription 1. Process in which a protein is assembled at a Answer: B ribosome. 2. Process in which naked DNA is taken up by a Answer: C bacterial or yeast cell. 3. Process that results in the production of cDNA Answer: E from an RNA molecule. 4. Process in which RNA is produced by using a DNA template. Answer: A Actinomycin D is an antibiotic drug that inhibits protein synthesis by blocking transcription. In some cells, the application of the drug does NOT affect the synthesis of certain proteins. Which of the following best explains such an occurrence? a. Not all proteins need tRNA molecules for their synthesis. b. The proteins that are made are using mRNA synthesized before application of the drug. c. Nuclear proteins do not require the cytoplasmic machinery of ribosomes. d. DNA transcription is not necessary for protein synthesis. e. Protein synthesis is blocked in the cytoplasm at the ribosome level. Answer: b The nitrogenous base, adenine, is found In which three of the following? a. b. c. d. e. Proteins, chlorophyll, and vitamin A Proteins, ATP, and DNA ATP, DNA, and RNA Chlorophyll, ATP, and DNA Proteins, carbohydrates, and ATP Answer: c If a segment of DNA is 5’-TACGATTAG-3’, the RNA that results from the transcription of this segment will be a. 3’-TAGGATTAU-5’ b. 3’-ATGCTAATA-5’ c. 3’-UACGAUUAG-5’ d. 3’-AACGAUUAA-5’ e. 3’-AUGCUAAUC-5’ Answer: e