pre-mRNA Processing in Eukaryotic cell | RNA splicing – Biology

Where does pre-mrna splicing occur in a eukaryotic cell? A: In the nucleus B: In the lysosome C: In the cytoplasm D: In the rough ER E: In the Golgi apparatus In the nucleus In eukaryotic, transcription to produce an mRNA must occur in A: the endoplasmic rericulum, where there are bound ribosomes. B: the cytoplasm, where free ribosomes are found. C: the necleus, where the chromosomal DNA is found. D: vesicles, which contains enzymes for RNA breakdown. the necleus, where the chromosomal DNA is found. EXPLANATION: In the nucleus, a pre-mRNA is produced through transcription of a region of DNA from a linear chromosome. Which of the following statements about protein synthesis is true? A: tRNAs are never attached to the growing protein chain B: The C terminus of the growing protein chain is attached to the 5' end of a tRNA C: The C terminus of the growing protein chain is attached to the 3' end of a tRNA D: The N terminus of the growing protein chain is attached to the 3' end of a tRNA E: The N terminus of the growing protein chain is attached to the 5' end of a tRNA Which of the following RNAs would you find in a prokaryotic cell but not in a eukaryotic cell A: mRNA B: tRNA C: rRNA D: snRNA E: miRNA F: None of these answer is correct None of these answer is correct In the process of intrinsic transcriptional termination, what RNA structural features are important to the process? In the process of intrinsic transcription termination, what RNA structural features are important to the process? A: The rut sequence in the mRNA that forms a structure that binds Rho protein, which causes mRNA release and transcription termination. B: A specific sequence of bases at the 3' end of an mRNA is able to catalyze its own excision, thereby terminating transcription. C: The stem loop that forms because of complementarity between bases making up two inverted repeat sequences in the termination sequence. D: The C terminal domain of RNA pol Il serves as a "scaffold" upon which the cleavage and polyadenylation complex resides, therefore enabling efficient transcription termination C: The stem loop that forms because of complementarity between bases making up two inverted repeat sequences in the termination sequence.