Termination of transcription in both E. coil and eukaryotic cells occurs because

Question

Termination of transcription in both E. coil and eukaryotic cells occurs because there is a termination signal in the DNA following the gene sequence. there is a hairpin structure followed by a string of U?s that forms in the RNA There is an AAUAAA sequence in the RNA that is recognized by nuclear proteins resulting in the cutting of the RNA transcript RNA polymerase reaches a stop codon in the RNA A and B Unlike bacterial transcripts, eukaryotic RNA transcripts are chemically modified because: Chemical groups help protect the mRNAs from degradation in the eukaryotic cytoplasm, bacterial mRNAs are not degraded Chemical groups facilitate the transport of eukaryotic RNAs from the nucleus to the cytoplasm, bacterial RNAs are synthesized in the cytoplasm Eukaryotic RNA polymerases cannot transcribe genes unless they are chemically modified, bacterial RNA polymerases transcribe unmodified genes Transcripts in eukaryotic cells contain non coding regions that must be removed, bacterial transcripts contain only coding sequence b and d

Explanation / Answer

1. B & D

2. A & B

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