Biology 12

THINKING LAB Transcription in Reverse Background Along with a gene, a coding stretch of DNA will contain other sequences that he ...

262 MHR • Unit 3 Molecular Genetics SECTION REVIEW What is the objective of transcription? List the main steps in the transcrip ...

Chapter 8 Protein Synthesis • MHR 263 8.3 From RNA to Protein: Translation If you play a musical instrument, you know that it is ...

264 MHR • Unit 3 Molecular Genetics Two parts of the tRNA structure are particularly important to its role in translation. At th ...

Chapter 8 Protein Synthesis • MHR 265 Each active ribosome has a binding site for the mRNA transcript and three binding sites fo ...

SKILL FOCUS Predicting Planning and initiating Performing and recording Communicating results Conducting research Investigation ...

3.Decide on one plan and assign responsibilities to each member of your group. 4.Assemble the materials you will need and prepar ...

until a protein called a release factorbinds to the A site. As shown in Figure 8.20, the release factor cleaves the completed po ...

Chapter 8 Protein Synthesis • MHR 269 Figure 8.21A summary of the main steps involved in transcription and translation in a euka ...

270 MHR • Unit 3 Molecular Genetics Biology At Work Molecular Biologist Alison Morrison is a molecular biologist with a mining c ...

Chapter 8 Protein Synthesis • MHR 271 SECTION REVIEW Explain how the wobble feature of the genetic code helps a cell conserve e ...

8.4 The Regulation of Gene Expression 272 MHR • Unit 3 Molecular Genetics Every living cell has the ability to respond to its en ...

Chapter 8 Protein Synthesis • MHR 273 Figure 8.26A summary of the main steps in the protein synthesis pathway in a prokaryotic c ...

274 MHR • Unit 3 Molecular Genetics If lactose molecules are present in the E. coli cell’s environment, they will be taken up by ...

Chapter 8 Protein Synthesis • MHR 275 it is activated by a separate inducer molecule (cAMP). Because an inducer plays a role in ...

276 MHR • Unit 3 Molecular Genetics more likely to bind to the operator and block transcription. The tryptophan molecule thus ac ...

Chapter 8 Protein Synthesis • MHR 277 Figure 8.32The main control points in the protein synthesis pathway in eukaryotic cells. T ...

278 MHR • Unit 3 Molecular Genetics sequences (sometimes called control elements). These DNA sequences can bind to additional tr ...

THINKING LAB Interpreting Micrographs Background Transcription and translation have been understood largely through experimental ...

280 MHR • Unit 3 Molecular Genetics SECTION REVIEW Explain why gene regulation in bacteria is (a)more likely to take place at t ...