Transcription occurs in the _________ blank , but most translation occurs in the _________ blank . nucleus; cytoplasm nucleus; nucleolus cytoplasm; nucleus nucleolus; cytoplasm nucleolus; rough endoplasmic reticulum单项选择题

A

A

B

B

C

C

D

D

E

E

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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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