1) Where does transcription occur in prokaryotic cells? a) . Nucleus b) Cytoplasm c) Mitochondria d) Ribosome 2) Where does transcription occur in eukaryotic cells? a) Cytoplasm b) Ribosome c) Nucleus d) Endoplasmic reticulum 3) Which enzyme is responsible for DNA transcription? a) DNA ligase b) RNA polymerase c) Helicase d) Reverse transcriptase 4) How many types of RNA polymerase are found in prokaryotes? a) Three types b) Two types c) One type d) Four types 5) Which RNA polymerase synthesizes mRNA in eukaryotes? a) RNA polymerase I b) RNA polymerase II c) RNA polymerase III d) RNA polymerase IV 6) Which feature is present in prokaryotes but absent in eukaryotes during transcription initiation? a) TATA box b) Sigma factor c) RNA processing d) Nucleus 7) Which promoter element is commonly found in eukaryotic genes? a) -10 box b) Operator c) Shine-Dalgarno sequence d) TATA box 8) What happens to eukaryotic mRNA after transcription? a) It is immediately translated b) It undergoes RNA processing c) It is degraded d) It binds to ribosomes in the nucleus 9) Which process occurs simultaneously with transcription in prokaryotes? a) RNA splicing b) DNA replication c) Translation d) RNA capping 10) Which statement correctly compares transcription in prokaryotes and eukaryotes? a) Both occur in the nucleus b) Prokaryotes require RNA processing, eukaryotes do not c) Eukaryotes use multiple RNA polymerases, prokaryotes use one d) Prokaryotes use RNA polymerase II only

Bio

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？