Proteinsynthesisalways startswith aninitiationcodon.Codons are ontRNA whileanticodonsare on mRNA.[Choose C[Choose Indicate whether the followingstatements are correct or notwith respect to protein synthesisusing the dropdown on the right.

Codons are sequence of three consecutive nucleotides on RNA molecule that codes for a specific amino…

Answered: Protein synthesis always starts with an…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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What amino acid is coded by each codon? Note: Reference the Genetic code table for additional information. Part 1 of 4 CAC Part 2 of 4 CAA Part 3 of 4 GUA Part 4 of 4 GAA ☑ ☑ ☑
In how many cases in the genetic code would it NOT be possible to know the amino acid specified by a codon if only the first two nucleotides of the codon are known?
Put the following events involved with protein synthesis in order. Move first event to the top of the list and finishe with the last event. The anticodon of the second tRNA binds at the A site; peptidyl transferase catalyzes a reaction to join the two amino acids together. The stop codon is reached on the mRNA; no tRNA binds, the ribosomes and polypeptide are released. Ribonucleotides are added by RNA polymerase creating a single strand of mRNA. ⠀ The DNA double helix is unwound beginning at the promoter sequence. A 5' cap and 3' poly A tail are added to the mRNA The polypeptide undergoes folding and further modifications, if needed. The ribosome shifts one codon down, opening up its A site. The next tRNA binds. The larger ribosomal unit clamps down on the tRNA carrying MET. The mRNA leaves the nucleus. The 5' cap binds to the small ribosomal unit, leading to the exposure of the start codon; the first tRNA carrying MET binds. :: #10 #
Use the codon sequence to translate the following mRNA sequence (start with the start codon - AUG - codes for methionine): mRNA sequence - AUGUAUAAGUAA [ Choose ] methionine, lysine, Stop, tyrosine 1st codon 2nd codon 3rd codon 4th codon
DNA gene TAC AGC TTT mRNA codon (No thymine in RNA!) tRNA anticodon (No thymine in RNA!) Amino acid Use the mRNA with the Genetic Code. Use the mRNA with the Genetic Code. Answer the questions below. Questions How many nucleotides would be needed to code for a protein that has 100 amino acids? Using the Genetic Code in Table 6.3, write all of the possible codons that signal the start and end of a gene. Start: End: An amino acid sequence of a protein molecule includes methionine, lysine, serine and glycine. Show each different codon that could result in each of these amino acids. You will have more than one codon for all of them except methionine. Amino Acids All Possible Codons Methionine Lysine Serine (Look carefully. There are six possibilities) Glycine Question 3 illustrates the redundant nature of the genetic code. Can you think of an advantage of having several codons that all code for the…
Which of the following mRNA codons could be changed to a stop codon by a single base pair substitution in DNA ? [In other words, if you substitute one of the bases for a diferent one, it will produce a stop codon. Don't overthink this. Just look at the codon as written, and see if changing any one base leads to a stop codon]. 1. UAC (tyrosine) 2. UGG (tryptophan) 3. CGA (arginine) 4. ACU (threonine) A. 1, 2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1, 2, 3 and 4 are correct
If a protein is made up of 1000 amino acids 1) How many nucleotides will its mRNA contain between (and including) the start and stop codon? _____ 2) How many codons will this mRNA contain? _____ 3) How many tRNA molecules will be needed to make that protein? _____
In your own words
During transcription, a portion of mRNA is synthesized with the following base sequence. 5'-AUG-GUA-CCA-CAU-UUG-UGA-3' Q.) Write the nucleotide sequence of the DNA from which this portion of mRNA was synthesized.
A small section of mRNA codons has the following sequence:UGU GGU CAA CCG Some Amino Acids Valine Serine Proline Glycine Arginine Leucine Histidine Cysteine Glutamine The amino acids listed above that are coded by the mRNA codons are Answer, Answer, Answer, and Answer.Record your answer in order from left to right codons.
Look at the codon "UUU" in the codon chart. If the 3rd nucleotide (3rd Uracil) was mutated to a "C" (Cytosine), would the Amino Acid change? Explain.
Use the chart here to answer the following question. Second Base in Codon U A G UAU]. Tyr UACJ Ser UAA Stop UGA Stop A UGU Cys UGC) UUU] UUC Phe UUA), Leu UCU) UCC UCA UCG) U UUGJ UAG Stop UGG Trp G CCU |CAU] His CACJH Pro CAA), CUU CGU CGC Arg U CỤC Leu CỦA ССС CCA CGA CGG CAG Gln AAU] CUG CCG G AGU] AUU) AUC lle A AUA, AUG Met or ACG Start GUU ACU) ACC ACA U AGC Ser AGA Arg AGG Thr AAC Asn AAA] Lys AAGJ GCU GỤC GUA GUG GAU Asp GACJ Ala GAA), Glu GAGJ GGU GGC GGA GGG GCC GCA C Gly Val A GCG) G List the three amino acids coded for in the following genetic code. Write your answer in the following format (xxx, xxx, xxx) using three letter abbreviations for the amino acids. AAUGACGGU First Base in Codon Third Base in Codon

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Protein synthesis always starts with an initiation codon. Codons are on tRNA while anticodons are on mRNA. [Choose [Choose C