RNA SPLICING AND PROCESSING

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• 45S RNA is a precursor that contains the sequences of bothmajor ribosomal RNAs (28S and 18S rRNAs).Figure 24.37rRNAs are cleaved from acommon precursorB-46
Figure 24.38 The rrn operons in E. coli (7) contain genes for both rRNA andtRNA. The exact lengths of the transcripts depend on which promoters (P) andterminators (t) are used. Each RNA product must be released from thetranscript by cuts on either side.B-47
Page 1 and 2: RNA SPLICING AND PROCESSINGPre-mRNA
Page 3 and 4: The physical form of hnRNA is hnRNP
Page 5 and 6: Nuclear splice junctions are short
Page 7 and 8: What ensures that the correct pairs
Page 9 and 10: The branch site in yeast ishighly c
Page 11 and 12: The five snRNPs involved in splicin
Page 13 and 14: Binding of U1 snRNP to the 5′ spl
Page 15 and 16: The direct way of forming an E comp
Page 17 and 18: Following formation of the E comple
Page 19 and 20: •Binding of U5 and U4/U6 snRNPs c
Page 21 and 22: Figure 24.16 The EJC (exon junction
Page 23 and 24: Figure 24.18 Three classes of splic
Page 25 and 26: Figure 24.20 Nuclear splicing and g
Page 27 and 28: The ratio of X chromosomes toautoso
Page 29 and 30: SL RNA is a small RNA that donates
Page 31 and 32: Figure 24.26 The intron in yeast tR
Page 33 and 34: Figure 24.28 The 3’ and 5’ clea
Page 35 and 36: Figure 24.30 Splicing of tRNA requi
Page 37 and 38: 45S RNA is a precursor that contain
Page 39 and 40: RNA polymerase I terminates transcr
Page 41 and 42: •The sequence AAUAAA is a signal
Page 43 and 44: Figure 24.35 The 3 processing compl
Page 45: •Histone mRNAs are not polyadenyl
Page 49 and 50: Figure 24.40 Uridine is converted t
Page 51: B-51

RNA SPLICING AND PROCESSING

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