Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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How would protein synthesis be affected if
a single codon could specify the incorporation of more than one
amino acid (an ambiguous code)?
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- How many nucleotides would be carried on a strip of mRNA with 10 codons?arrow_forwardHow exactly do I identify a tRNA with respect to mRNA? Ie: What exactly does the tRNA do and how is it produced?arrow_forwardGive the complementary codons, anticodons, and amino acids for the following: - ATG - CCA-AGG-GCT - ACT Code: TAC-TCG-CGC-ACC-GTA-TGC Give the complementary code, anticodons, and amino acids for the following: Codon: AUG - UCA - UCU - CGU - UAC - CCU - GCC-ACU-GCA - CUG - UAG Give the complementary code, codons, and amino acids for the following: Anticodon : UAC – CUA – GAC – AUG – GGG – CAU – UGG – CCA – GCA – AUU Complete the following tables: CODE: T-A-C A-T-G C-C-G T-G-G A-A-T C-G-C A-T-T CODON: ANTICODON: AMINO ACID: CODE: CODON: ANTICODON: U-A-C A-U-G U-U-C C-G-A AMINO ACID: CODE: CODON: A-U-G ANTICODON AMINO ACID: T-T-A C-C-U A-U-C A-U-C C-C-U A-C-U C-U-G T-A-C U-A-Garrow_forward
- Explain the reasoning establishing that a sequence of three nucleotides (a triplet codon) is the basic unit of the code relating DNA to protein?arrow_forwardHow many codons are needed to specify one amino acid?arrow_forwardHow can the 4 nucleotides present in DNA code for the 20 different amino acids found in proteins? How many bases would be needed in a codon if there were five RNA bases instead of four?arrow_forward
- Explain the reasoning for the establishment of three nucleotides codons.arrow_forwardA protein had the amino acids leu-gly at codons 10 and 11. A deletion of the 5’ base of the leu codon (i.e. the first base) changed the protein so that it now reads ser-ala at codons 10 and 11. The original Leu codon must have been: (hint: make use of a codon table to answer this question) CUG AUG CUA CUC CUUarrow_forwardRefer to the genetic code table and the mRNA sequence below to complete this question: U C U G A U G G G C U U U... beginning with the start codon, which amino acids, in order, are coded for by this section of mRNA? A) Thr-Met- Gly B) Met-Gly-Phe C) Ser-Asp-Gly-Leu .arrow_forward
- Indicate the mRNA sequence, coding sense DNA sequence and template DNA sequence that produced the following polypeptide. The signal “!” means a stop codon:MYCATEATMYRING!arrow_forwardIndicate the amino acid sequence of the protein encoded by the following mRNA molecule. Use the genetic code table and assume that the very first “AUG” the ribosome encounters will serve as the start codon and specify methionine. 5’-AAUUCAUGCCCAAAUUUGGGGCACGAAGCUUCUUAGGCUAGUCCUAAAAAA-3’arrow_forward
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