Question text Consider the following DNA template strand sequence: 3' - TACGGACTTACG - 5' Using this DNA sequence, answer the following: a. Identify the mRNA sequence transcribed from this DNA template. Answer 1 Question 21[select: , 5' - AUG CCU GAA UGC - 3', 5' - AUG CCG UUU ACG - 3', 5' - UAC GGA CUU ACG - 3', 5' - UAC GGC UUU ACG - 3'] b. Determine the amino acid sequence that corresponds to the mRNA sequence. Answer 2 Question 21[select: , Met-Pro-Glu-Cys, Tyr-Gly-Leu-Thr, Tyr-Gly-Leu-Arg] c. If a mutation changes the DNA sequence to 3' - TACGGCCTTACG - 5', identify the new mRNA sequence and amino acid sequence. New mRNA sequence: Answer 3 Question 21[select: , AUG CCG GAA UGC, 5' - AUG CCG UUU ACG - 3', 5' - UAC GGC UUU ACG - 3', 5' - UAC GGC UUU TGC - 3'] New amino acid sequence: Answer 4 Question 21[select: , Met-Pro-Phe-Thr, Tyr-Gly-Phe-Thr, Tyr-Gly-Phe-Cys] d. Determine if the protein resulting from the mutated DNA will be functional or non-functional based on the change. Answer 5 Question 21[select: , Functional, Non-functional] (I:5)多项填空题

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Gene transcription occurs in the nucleus and refers to conversion of information from [ Select ] DNA to mRNA mRNA to protein . Gene translation occurs in the cytoplasm and refers to conversion of information from [ Select ] DNA to mRNA mRNA to protein protein to mRNA .

Question32 Which one of the following statements describes a key difference between transcription as it occurs in bacteria compared to eukaryotes? Select one alternative: Bacterial translation can start before transcription of the same gene has finished. Bacteria use three distinct RNA polymerases that synthesise different RNA types. In bacteria, synthesis of the RNA chain occurs in the 5′ → 3′ direction. Promoter regions are only found in bacterial operons. ResetMaximum marks: 1 Flag question undefined

Molecular biologists are studying the processes of transcription and translation and have found that they are very similar in prokaryotes and eukaryotes, as summarized in Table 1. Table 1. Comparison of Selected Features of Transcription and Translation Feature of Protein Synthesis Prokaryotes Eukaryotes Transcription RNA Polymerase Present Present mRNA Synthesized Synthesized Location Cytoplasm Nucleus Translation Large Ribosomal Subunit 50S 60S Small Ribosomal Subunit 30S 40S tRNA Present Present Location Cytoplasm Cytoplasm Based on the information in Table 1, which of the following best predicts a key difference in prokaryotes and eukaryotes with regard to transcription and translation?

A tobacco plant can be made to express a gene from fireflies, resulting in the emission of light. Which of the following is the basis for this phenomenon?

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