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In-text figure Page 227. translation. transcription. protein. DNA. RNA. Figure 14.2 Page 228. URACIL (U) base with a single-ring structure. phosphate group. sugar (ribose). Figure 14.3 Page 228. DNA. G C A U. G C A T. RNA. C G T A. C G T A. DNA.
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In-text figurePage 227 translation transcription protein DNA RNA
Figure 14.2Page 228 URACIL (U) base with a single-ring structure phosphate group sugar (ribose)
Figure 14.3Page 228 DNA G C A U G C A T RNA C G T A C G T A DNA DNA base-pairing in DNA replication base-pairing in transcription
Figure 14.4aPage 228 sugar-phosphate backbone of one strand of nucleoides in a DNA double helix sugar-phosphate backbone of the other strand of nucleoides part of the sequence of base-pairs (blue)
Figure 14.4bPage 229 RNA polymerase DNA
Figure 14.4cPage 229 transcribed DNA winds up again DNA to be transcribed unwinds newly forming RNA transcript DNA template at the assembly site
Figure 14.4d,ePage 229 growing RNA transcript 3’ 5’ 3’ 5’ direction of transcription 5’ 3’
Stepped ArtFigure 14.5Page 229 transcription into pre-mRNA poly-A tail cap 5’ 3’ snipped out snipped out 5’ 3’ mature mRNA transcript unit of transcription in a DNA strand exon intron exon intron exon 5’ 3’
Figure 14.6Page 230 base sequence of gene region mRNA amino acids arginine glycine tyrosine tryptophan tyrosine
Figure 14.8Page 231 codon in mRNA anticodon amino-acid attachment site amino acid OH
Figure 14.9b,cPage 231 tunnel intact ribosome small ribosome subunit + large ribosome subunit
Fig. 14.10a-cPage 232 Initiation intact ribosome small ribosomal subunit initiator tRNA mRNA transcript
Figure 14.10dPage 232 binding site for mRNA P (first binding site for tRNA) A (second binding site for tRNA) platform on small ribosomal subunit
Fig. 14.10e-gPage 233 Elongation
Fig. 14.10h,iPage 233 Elongation
Fig. 14.10j-kPage 233 Termination mRNA mRNA new polypeptide chain
Figure 14.11Page 234 original base triplet in a DNA strand a base substitution within the triplet (red) During replication, proofreading enzymes make a substitution: possible outcomes: or original, unmutated sequence a gene mutation
Figure 14.12Page 234 mRNA parental DNA arginine glycine tyrosine tryptophan asparagine amino acids altered mRNA DNA with base insertion altered amino- acid sequence arginine glycine leucine leucine glutamate
Figure 14.14Page 236 Transcription mRNA rRNA tRNA proteinsubunits mRNA transcripts ribosomal subunits tRNA Translation amino acids, tRNAs, ribosomal subunits Protein