Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10.3, Problem 1CC
Do the ends of protein-encoding genes have a poly T region that provides a template for the synthesis of a poly A tail in mRNA? Explain.
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For the following mRNA sequences, what is the amino acid sequence formed? Consult genetic code table for reference.
5' AGUCCGUAC 3'
5' AAUUGCUUC 3'
A fragment of a polypeptide, Met-Thr-Ile-Ser-Asp-Ile is encoded by the following sequence of DNA:Strand A - TACGATGACGATAAGCGACATAGC - Strand B - ATGCTACTGCTATTCGCTGTATCG -Which is the transcribed (template) strand? Write the sequence of the resulting mRNA transcript. Add labels to the strands above to show the 3’ and 5’ ends.
The mRNA formed from the repeating tetranucleotide UUACincorporates only three amino acids, but the use of UAUC incorporates four amino acids. Why?
Chapter 10 Solutions
Principles of Biology
Ch. 10.1 - What is the direction of flow of genetic...Ch. 10.1 - Prob. 1TYKCh. 10.1 - Prob. 2TYKCh. 10.1 - Prob. 3TYKCh. 10.2 - How would removing a terminator from a gene affect...Ch. 10.2 - Prob. 1BCCh. 10.2 - Prob. 1TYKCh. 10.2 - Prob. 2TYKCh. 10.3 - Do the ends of protein-encoding genes have a poly...Ch. 10.3 - The splicing of pre-mRNA in eukaryotes involves...
Ch. 10.3 - Prob. 2TYKCh. 10.4 - Prob. 1CCCh. 10.4 - Prob. 2CCCh. 10.4 - Prob. 1TYKCh. 10.4 - Prob. 2TYKCh. 10.5 - Prob. 1CCCh. 10.5 - Prob. 1BCCh. 10.5 - Based on the gene sequences shown here, pick two...Ch. 10.5 - Prob. 1TYKCh. 10.5 - Prob. 2TYKCh. 10.5 - Prob. 3TYKCh. 10.6 - Prob. 1CCCh. 10.6 - Prob. 1TYKCh. 10.6 - Prob. 2TYKCh. 10 - Which of the following best represents the central...Ch. 10 - Prob. 2TYCh. 10 - Prob. 3TYCh. 10 - Prob. 4TYCh. 10 - Prob. 5TYCh. 10 - Prob. 6TYCh. 10 - The legion of a tRNA that is complementary to a...Ch. 10 - Prob. 8TYCh. 10 - Prob. 9TYCh. 10 - Prob. 10TYCh. 10 - Lets suppose a gene mutation changed the sixth...Ch. 10 - What is the function of an aminoacyl-tRNA...Ch. 10 - A principle of biology is that the genetic...Ch. 10 - Prob. 1CBQCh. 10 - Prob. 2CBQ
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- Given this mRNA strand: 3’ - AUGAGGAAGGUA - 5’; what are the components of the polypeptide?arrow_forwardWhat amino acid sequence does the following mRNA nucleotides sequence specify? 5'- AUGGCCAGCUGU -3' Express the sequence of amino axis's using the three-abbreviations, separate hyphens (e.g., Met-Ser-Thr-Lys-Gly).arrow_forwardGiven the following mRNA sequence: 5-AUCCCGUAUGCCCGGGAGCUAGCCCAGC-3 a) Label the first condon, the stop codon, the untranslated regions and predict the amino acid sequence of the polypeptidarrow_forward
- Although the RBS (Ribosome-Binding Site) sequences vary considerably in different genes, they include examples like GAGGGG that could serve as code for Glu-Gly. Does this imply that the amino acid sequence Glu-Gly can never occur in a protein, lest the two mRNA codons be read as a RBS sequence? Explain your answer.arrow_forwardWhen an intron is undergoing the first step in splicing, where is the first breakage of the phosphodiester backbone that occurs? (Explain)arrow_forwardExplain why the translation of a given mRNA can be inhibited by a segment of its complementary sequence, a so-called antisense RNA.arrow_forward
- A eukaryotic cell carrying out transcription and RNA processing is incubated with 32P-labeled ATP. Where will the radioactive isotope appear in mature mRNA if the ATP is labeled at the (a) α position, (b) β position, and (c) γ position?arrow_forward(a) Write the complementary base sequence for the matching strand in the DNA section shown below:. 5' - ATGTTACTAGT C-3' (b) The following section of DNA is used to build an MRNA for a protein: 3'-AAG-CTT-CTC-5'. What is the corresponding mRNA sequence?arrow_forwardA hypothetical tripeptide Leu-Leu-Leu could be synthesized by the cell. What three different base triplets in mRNA could be combined to code for this tripeptide?arrow_forward
- Given the following mRNA transcript: 5’-UUUGGCAUGGGUAUCGUAGAGAUGGAAUUCAUAGUGGAGUAA-3’ What is the one-letter abbreviation of the protein product of the mRNA transcript?arrow_forwardOne of the codons in mRNA that specifies the amino acid phenylalanine is UUC. What is the anticodon on the tRNA that carries phenylalanine?arrow_forwardA polypeptide has 51 amino acids in its primary structure. (i) What is the minimum number of DNA bases required to code for the amino acids in this polypeptide. Show your calculation. (ii) Does AUG appear in the first three nucleotides in the mRNA coding for this mRNA? Explain why.arrow_forward
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