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© 2014 Pearson Education, Inc. The Hershey and Chase experiments using 35 S- and 32 P-labeled T2 bacteriophage supported the hypothesis that DNA is the genetic material because __________. A. 35 S-labeled phage protein entered the host cell B.new T2 progeny contained 35 S-labeled protein C. 32 P-labeled phage DNA did not enter the host cell D.new T2 progeny contained 32 P-labeled DNA
© 2014 Pearson Education, Inc. Which one of the following components is NOT required for DNA synthesis? A.DNA polymerase B.deoxyribonucleotide triphosphates (dNTPs) C.a DNA template D.ribonucleotide triphosphates (rNTPs)
© 2014 Pearson Education, Inc. Data from pulse-chase studies showed that most mRNA leaves the nucleus and enters the cytoplasm. These data supported the hypothesis that __________. A.DNA directly serves as the template for protein synthesis B.mRNA serves as the template for protein synthesis C.protein synthesis occurs in the nucleus D.mRNA synthesis occurs in the cytoplasm
© 2014 Pearson Education, Inc. Crick developed the adaptor hypothesis in response to all EXCEPT which of the following limitations of the conventionally held model for protein synthesis? A.the unlikelihood that a folded RNA template could directly interact with hydrophobic amino acids B.the unlikelihood that a folded RNA template could discriminate between amino acids of a similar size C.the unlikelihood that a folded RNA template could form a cavity specific enough to fit only one given amino acid D.the unlikelihood that a folded RNA template could directly interact with hydrophilic amino acids
© 2014 Pearson Education, Inc. The hypothesis that the genetic code consisted of groups of three nucleotides rather than groups of two nucleotides supports which of the following conclusions? A.Some codons must code for multiple amino acids. B.Every amino acid has at least one unique corresponding codon. C.Every amino acid has only one corresponding codon. D.All codons encode an amino acid.
© 2014 Pearson Education, Inc. Which one of the following statements about the processes of transcription and translation is FALSE? A.The synthesis of mRNA occurs in the 5 to 3 direction. B.The synthesis of proteins occurs in the 5 to 3 direction. C.The DNA template is read in the 3 to 5 direction during mRNA synthesis. D.A transcribed mRNA and its non-template DNA strand are both oriented the same way with respect to the template DNA strand.
© 2014 Pearson Education, Inc. Using the table of the genetic code, identify which one of the following template DNA sequences encodes the amino acid tryptophan. A.5-UGG-3 B.5-TGG-3 C.5-CCA-3 D.5-GGT-3
End Show Slide 1 of 39 Copyright Pearson Prentice Hall 12-3 RNA and Protein Synthesis 12–3 RNA and Protein Synthesis.
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