3. On the diagram below, draw how the mRNA is translated into a peptide beginning with the third codon of the mRNA. Use different colors to show the process of translation. Label your diagram with: (a) ribosome, (b) tRNA, (c) codons, (d) anticodons and (e) amino acids (three letter abbreviations) in the correct places. Label the 5' and the 3' ends of mRNA. Write the primary structure of the protein synthesized using the three letter abbreviation (Ala-Cys-.....) on the space underneath the diagram. Label the N and the C terminals of the protein made. 000 000 Describe the effect on the protein chain if base pair # 6 in the parent DNA chain is mutated from to

3. On the diagram below, draw how the mRNA is translated into a peptide beginning with the third codon of the mRNA. Use different colors to show the process of translation. Label your diagram with: (a) ribosome, (b) tRNA, (c) codons, (d) anticodons and (e) amino acids (three letter abbreviations) in the correct places. Label the 5' and the 3' ends of mRNA. Write the primary structure of the protein synthesized using the three letter abbreviation (Ala-Cys-.....) on the space underneath the diagram. Label the N and the C terminals of the protein made. 000 000 Describe the effect on the protein chain if base pair # 6 in the parent DNA chain is mutated from to

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter15: From Dna To Protein

Section: Chapter Questions

Problem 5TYK: Which of the following statements is false? a. GTP is an energy source during various stages of...

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Which of the following statements is false? a. GTP is an energy source during various stages of translation. b. In the ribosome, peptidyl transferase catalyzes peptide bondformation between amino acids. c. When the mRNA code UAA reaches the ribosome, there isno tRNA to bind to it. d. A long polypeptide is cut off the tRNA in the A site so its Metamino acid links to the amino acid in the P site. e. Forty-two amino acids of a protein are encoded by 126nucleotides of the mRNA.
Figure 15.16 Many antibiotics inhibit bacterial protein synthesis. For example, tetracycline blocks the A site on the bacterial ribosome, and chloramphenicol blocks peptidyl transfer. What specific effect would you expect each of these antibiotics to have on protein synthesis? Tetracycline would directly affect: tRNA binding to the ribosome ribosome assembly growth of the protein chain Chloramphenicol would directly affect tRNA binding to the ribosome ribosome assembly growth of the protein chain
1. Identify the name of the correct amino acid that corresponds to the correct tRNA codon and mRNA codon. State the process used to convert to mRNA and tRNA.
3. The sequence of bases on an mRNA strand is AAUCGACGCCCGACUAGC. List the codons present in this sequence. 4. List the tRNA anticodons that would pair with the codons present in the above sequence of mRNA. 5. Determine the translated amino acid sequence obtained from the mRNA strand given in question 3. You may use the genetic code table to translate. 6. A tRNA anticodon has the base sequence CCG. Identify the DNA base sequence that was used to produce the codon that will bind it to this anticodon. 7. Explain how you would determine whether a single chain of nucleotides is RNA or DNA. 8. Describe all the elements required to carry out the process of translation. 9. Describe the importance of DNA in determining the structure of a particular protein.
1). The sequence of mRNA made using the DNA double helix shown below is 2). The sequence of protein made using the mRNA is
1. The codon AUG on the mRNA codes for which amino acid (give the 3-letter abbreviation)? _______ The codon GGA would indicate which amino acid? _______ If a codon UAG is reached what does this indicate? _______
2. How many codons are there in the mRNA?
1. What are the types and major functions for each type of RNA? 2. Define transcription and translation. Which process occurs first to make protein from DNA? 3. In what direction does a polymerase move when synthesizing a strand of mRNA?
1. If the gene above is transcribed into a functional mRNA, a.) how many codons will be carried by the functional mRNA? b.) what is the sequence of the 25th codon? c.) what is the sequence of the stop codon? 2. If the mRNA transcribed for this gene will be translated into a functional protein, a.) how many amino acids will be used to build the polypeptide chain? b.) what is the amino acid coded by the 25th codon? c.) what is the amino acid coded by the last codon? 3. If the above gene is one of the three structural genes of the lac operon that codes for the protein/ enzyme responsible for breaking lactose into two molecules of simple sugars, a.) what triggers the activation of this gene? b.) what triggers the inactivation of this gene? c.) what substance is attached to the operator region of the operon in the absence of activator? d.) what gene is responsible for the synthesis of the substance used to attach in the operator region in the absence of activator? e.) what…
1. If the gene above is transcribed into a functional mRNA,a.) how many codons will be carried by the functional mRNA?b.) what is the sequence of the 25th codon?c.) what is the sequence of the stop codon?2. If the mRNA transcribed for this gene will be translated into a functional protein,a.) how many amino acids will be used to build the polypeptide chain?b.) what is the amino acid coded by the 25th codon?c.) what is the amino acid coded by the last codon?
1. how is information from the DNA passes on from one cell to another?2. How does the structure of a DNA molecule hellp account for the great variety of life that exists on earth?3. Does your mRNA model more closely resemble the DNA strand from which it was transcribed?4. Explain how the structure of DNA enables the molecule to be easily transcribed. Why it is important for genetic information?5. Why is RNA important to the cell?6. How does the mRNA molecule carry information from DNA?
1. Assume that the ribosome has just catalyzed the formation of a peptide bond, but the ribosome has not yet translocated to the next codon. Is the polypeptide attached to the A-site tRNA or to the P-site tRNA?