Below are the general steps of protein synthesis. What is the correct sequence of protein synthesis? 1-ribosome bonds amino acids together; 2-mRNA leaves the nucleus; 3- TRNA molecules pick up amino acids; 4-C double helix unwinds; 5-TRNA anticodon links with MRNA codon; 6-polypeptide chain completed; 7-MRNA binds to ribosome; 8-MRNA transcibed

Below are the general steps of protein synthesis. What is the correct sequence of protein synthesis? 1-ribosome bonds amino acids together; 2-mRNA leaves the nucleus; 3- TRNA molecules pick up amino acids; 4-C double helix unwinds; 5-TRNA anticodon links with MRNA codon; 6-polypeptide chain completed; 7-MRNA binds to ribosome; 8-MRNA transcibed

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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How many letters of an RNA molecule, in sequence, does it take to provide the code for a single amino acid? 1 2 3 4
A part of an mRNA molecule with the sequence 5-UGC GCA-3 is being translated by a ribosome. The following activated tRNA molecules are available. tRNA Anticodon Amino Acid 3-GGC-5 Proline 3-CGU-5 Alanine 3-UGC-5 Treonine 3-CCG-5 Glycine 3-ACG-5 Cysteine 3-CGC-5 Alanine Which two of them can bind correctly to the mRNA so that a dipeptide can form? a. cysteinealanine b. prolinecysteine c. glycinecysteine d. alaninealanine e. threonineglycine
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.
17. All of the following occur when the amino acids of two tRNA molecules are joined, except. a. The tRNA in the first position is released to get a new amino acid b. The mRNA molecules bring amino acids to the ribosome to be joined to the growing polypeptide c. The growing polypeptide is attached to the tRNA in the second position d. The mRNA is pulled through the ribosome so that the tRNA with the protein chain goes into the first position
Which choice best fits the blank? Refer to picture. The ribosome moves along the mRNA strand. In panels b, c, and d, new tRNAs carrying ___________. match up with the codons of the mRNA strand. After each tRNA locks into place, a peptide bond forms between the amino acid the tRNA is carrying and the amino acid already there. This process repeats until the end of the sequence is reached. A. ProteinsB. NucleotidesC. Amino Acids
30. Which of the following is FALSE when comparing RNA and DNA? A.are composed of nucleotides that contain a phosphate group, a pentose sugar, and a nitrogenous base. B. Both contain nucleotides connected by phosphodiester linkages. C. Both have a 5’ end and a 3’ end. D. Both are composed of identical nucleotides.
TRUE OR FALSE 1. The RNA molecules could be found in the nucleoplasm 2. The cyclobutane pyrimidine dimers are associated with CG to AT mutations 3. The nucleotides are joined by phosphodiester bonds 4. The mRNA carries the amino acids for elongation in protein synthesis 5. The DNA is present in the mitochondria 6. A blue coloration in Bial’s test indicates the presence of pentoses 7. Sodium hydroxide is the hydrolyzing agent in ammonium molybdate test 8. A black precipitate forms when a purine reacts with silver ions 9. Hydrolysis is the breaking of a bond in a molecule using water 10. The phosphate backbone is the site of cleavage during the DNA hydrolysis
Need help Below is a strand of mRNA with three codons listed on the strand. Imagine the mRNA strand is in the cytoplasm of a cell and translation is in progress. Draw and label all the necessary main players needed for translation to occur. Included in your drawing should also bee 3 tRNAs , these 3 tRNAs should represent two different forms of tRNA. MRNA 5' ------------AUG------------AGG----------GAG
Given the following DNA sequence: 3'-TACTTNGTNCTNTCN-5' where N stands for any nucleotide, give the complementary mRNA sequence. Indicate direction of strand as 3'--> 5' or 5'--> 3' as in the given sequence above. Give the amino acid sequence of your mRNA sequencelin No. 1. Indicate direction of strand as above. Use all lowercase letters, 3-letter name of amino acid separated by a hyphen (-), no spaces in-between.
1. (a) Which of the following statements is TRUE? DNA polymerase moves in a 5 to 3 direction in proofreading and correcting synthesized DNA. RNA polymerase moves in a 5 to 3 direction in synthesizing mRNA. Ribosome moves in a 3 to 5 direction during translation. tRNA moves in a 3 to 5 direction during translation. (b) "In this mutation, most amino acids are replaced due to a deletion of a nucleotide base." missense mutation nonsense mutation silent mutation frameshift mutation
9) A hypothetical protein is 250 amino acids long how many nucleotides are in the code and sequence of the mRNA? A) 1000 B) 500 C) 1 million nucleotides D) 750 E) 1400
30. How can one identify the presence of introns in a hybrid of DNA and mRNA? Give an example of non-coding RNA and a regulatory DNA element.