Edit View History Bookmarks Window Help ezto.mheducation.com apter 7 - Life Scie... M 1 - Homework 6: chapter 6 - Conn... McGraw Hill mework 7: chapter 7 Saved 3 mRNA sequence I What is wrong with the following piece of mRNA? TACCAGGATCACTTTGCCA Multiple Choice Book Print erences It contains A and not U. It does not include an equal number of As and Ts. It does not include an equal number of Gs and Cs. Prev 3 of 28 Score ans
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The question asks to identify what is wrong with the given mRNA sequence: TACCAGGATCACTTTGCCA. Show more…
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Question 6: (1 mark) An mRNA has the following codon: 5' GCA 3'. What tRNA anticodon will bind to this codon? The tRNA anticodon 5' 3' will bind to the mRNA codon 5' GCA 3'. **Please enter your sequence in the 5' to 3' direction. Deductions will be made if a sequence is inputted in the wrong direction.** Question 7: (1 mark) A tRNA anticodon has the following sequence: 3' CUA 5'. What amino acid does it carry? The amino acid carried on a tRNA with the anticodon 3' CUA 5' is . **Hint: You will need to consult the genetic code to answer this question. And watch your 5' to 3' direction.** Questions 8 to 13 are based on the following information. Question 8: The top strand of the following segment of DNA serves as the template strand: 3' TACACCTTGGCGACGACT 5' 5' ATGTGGAACCGCTGCTGA 3' We will refer to this segment of DNA as the original (or unmutated) sequence. Please answer the following questions: (a) What is the mRNA sequence? The mRNA sequence is 5' ATGTGGAACCGCTGCTGA 3'. (2 marks) **Please enter your sequence in the 5' to 3' direction. Deductions will be made if a sequence is inputted in the wrong direction.** (b) Using the mRNA sequence you determined in part (a) of this question, give the sequence of the protein that would be translated. The amino acid sequence for this protein is N-terminus C-terminus. (2 marks) **Please note** The N-terminus refers to the beginning of the primary sequence for a protein, and the C-terminus refers to the end of the primary sequence for a protein. i.e. input the amino acids in the order that they would be translated. If a codon encodes for a stop codon, type STOP. When inputting your sequence, separate each amino acid with a hyphen (e.g. Ser-Tyr-STOP). You will need to consult the genetic code to answer this question. Questions 9 to 13 are in reference to the DNA sequence shown in Question 8. Question 9: The original (unmutated) DNA sequence (shown above in Question 8) has been mutated to the following (this represents the template strand): 3' TACATCTTGGCGACGACT 5'. We will refer to this sequence as mutation #1. Please note that for simplicity only the template strand for this mutated segment of DNA is shown. Answer the following questions: (a) What is the complete mRNA sequence for the mutated segment mutation #1? The mutated mRNA sequence is 5' AUGACGAACCGCUGCUCA 3'. (2 marks) **Please enter your sequence in the 5' to 3' direction. Deductions will be made if a sequence is inputted in the wrong direction.** (b) Using the mRNA sequence you determined in part (a) of this question, give the sequence of the protein that would be translated. The amino acid sequence for this protein is N-terminus C-terminus. (2 marks) **Please note** The N-terminus refers to the beginning of the primary sequence for a protein, and the C-terminus refers to the end of the primary sequence for a protein. i.e. input the amino acids in the order that they would be translated. If a codon encodes for a stop codon, type STOP. When inputting your sequence, separate each amino acid with a hyphen (e.g. Ser-Tyr-STOP). You will need to consult the genetic code to answer this question.
You may want to reference (Pages 737-742) Section 21.5 while completing this problem. The following sequence is a portion of the DNA template strand: 3' GCT ATA CCA AAA 5' Codons in mRNA: The Genetic Code for Amino Acids First letter Second letter Third letter U C A G U UUU Phe (F) UCU Ser (S) UAU Tyr (Y) UGU Cys (C) U UUC Phe (F) UCC Ser (S) UAC Tyr (Y) UGC Cys (C) C UUA Leu (L) UCA Ser (S) UAA STOP UGA STOP A UUG Leu (L) UCG Ser (S) UAG STOP UGG Trp (W) G C CUU Leu (L) CCU Pro (P) CAU His (H) CGU Arg (R) U CUC Leu (L) CCC Pro (P) CAC His (H) CGC Arg (R) C CUA Leu (L) CCA Pro (P) CAA Gln (Q) CGA Arg (R) A CUG Leu (L) CCG Pro (P) CAG Gln (Q) CGG Arg (R) G A AUU Ile (I) ACU Thr (T) AAU Asn (N) AGU Ser (S) U AUC Ile (I) ACC Thr (T) AAC Asn (N) AGC Ser (S) C AUA Ile (I) ACA Thr (T) AAA Lys (K) AGA Arg (R) A AUG START/Met (M) ACG Thr (T) AAG Lys (K) AGG Arg (R) G G GUU Val (V) GCU Ala (A) GAU Asp (D) GGU Gly (G) U GUC Val (V) GCC Ala (A) GAC Asp (D) GGC Gly (G) C GUA Val (V) GCA Ala (A) GAA Glu (E) GGA Gly (G) A GUG Val (V) GCG Ala (A) GAG Glu (E) GGG Gly (G) G Part B What are the anticodons of the tRNAs for the mRNA in Part A? Enter your answer as a string without dashes, using one-letter abbreviations for bases. Submit Request Answer Part C Enter the three-letter abbreviations for this segment in the peptide chain. Enter your answer as a string without dashes or commas, using three-letter abbreviations for amino acids. Submit Request Answer Part D Enter the one-letter abbreviations for this segment in the peptide chain. Enter your answer as a string without dashes or commas, using one-letter abbreviations for amino acids. Submit Request Answer
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