. Suppose that a gene underwent a mutation that changed a GAA codon toUAA.(a) Name the amino acid encoded by the original triplet.(b) Identify a tRNA anticodon that could translate the nonsense UAA triplet.(c) What other amino acid could be encoded by the mutant tRNA?

A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or…

Answered: . Suppose that a gene underwent a…

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

See similar textbooks

Similar questions

What happens immediately after the initiation complex forms during translation? (a) peptide bond formation (b) the DNA associated with the promoter unwinds (c) the small and large subunits of the ribosome come together (d) primers are formed (e) phosphodiester bond formation
IX. Dibuje la estructura del polinucleótido que aparece a continuación el cual corresponde a un codón en el mRNA que codifica para el aminoácido prolina. (Solamente se pide el dibujo de la estructura siguiendo el modelo de polinucleótido mostrado en clase). e). .) 5'-C-C-C-3' Show Transcribed Text IX. Draw the structure of the polynucleotide below which corresponds to a codon in the mRNA that codes for the amino acid proline. (Only a drawing of the structure following the polynucleotide model is requested)
Transcription and translation are separate processes in gene expression; however, they have similarities. The following terms all relate to translation. Which of these has a role that is most similar to that of the transcription start site during transcription? A)Start codon B)Stop codon C)tRNA D)Amino acid
5'– ATGGCGAGGCGGCAGCTGTTATGGTGA – 3' In the sequence above, suppose that the 20th nucleotide of the template (an T) was mutated to a A. (A) Now, what is the mRNA sequence? (B) What is the amino acid sequence of the translated protein? (C) Would this protein be able to carry out its function?
RNA polymerases generally require a primer to begin transcription. (T) (F) The Death Cap Mushroom Amanita phalloides is toxic because of its ability to produce alpha-amanitin, which is an inhibitor of RNA Polymerases I and III. (T) (F) In bacteria, transcription and translation can occur simultaneously. (T) (F) In eukaryotes, transcription and translation can occur simultaneously (T) (F) RNA polymerase II has no form of proofreading activity. (T) (F) Sigma factors specify binding of bacterial RNA Polymerases to specific promoters (T) (F) An E. coli strain with mutations in genes encoding both the dam methylase and the RecA protein would likely be inviable (dead) (T) (F) An E. coli culture grown in a pure (100%) N2 atmosphere would likely have a lower rate of mutations than a culture grown under normal conditions (~30% O2 and 70% N2) (T) (F) Non-homologous end joining repairs double strand DNA breaks with no loss of information, restoring the original…
Can you explain it?
Q1: How many codons code for isoleucine? For tryptophan? For leucine? Q2: What codons are associated with asparagine? With serine? Q3: From the partial mRNA sequence that you speciﬁed in Figure 10.6’s question 3 as being transcribed from the DNA template strand, remove only the ﬁrst A. What amino acid sequence would be translated as a result of this change? How does that sequence compare to the amino acid sequence you translated from the original mRNA sequence?
First start with a pre-MRNA with four exons and three introns and diagram the splicing reactions leading to the four exons being spliced together (a) Second, show the following two alternative splicing diagrams that would produce (b) intron 2 retention, otherwise similar to part (a) (c) mutually exclusive exon (exon 1- either exon 2 or exon 3 -- exon 4) (d) exon 2 skipping, otherwise, similar to part (a). For part (d), explain how an SR protein could influence whether exon 2 is skipped. What would happen if SR binding to the exon 2 ESE was weak? Which MRNA isoform would be more abundant?
Position on the small and large ribosomal subunits which the peptidyl-tRNA occupies prior to peptide bond formation Group of answer choices a)No answer text provided. b)A Site c)P Site
Match each of the following examples with the hypothesis it argues against. Example The gene coding for keratin A gene coding for a tRNA Three genes, each coding for one of the G protein subunits (a, ß and y) A gene that undergoes alternative splicing Hypothesis One gene → one polypeptide One gene→→ one enzyme One gene → one protein One gene → one protein
In the diagram of transcription shown here, ﬁll in the blanks with the appropriate terms: (a) gene; (b) promoter; (c) terminator; (d) RNA polymerase; (e) mRNA.
Before the Genetic Code was solved, scientists predicted that mRNA codons would need to be a minimum of three bases long (ex. AAA, not AA or A) to code for a single amino acid. What was the reason they predicted this?

SEE MORE QUESTIONS

Recommended textbooks for you

Biochemistry

ISBN:

9781319114671

Author:

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

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781319114671

Author:

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

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781305961135

Author:

Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Fundamentals of General, Organic, and Biological …

Biochemistry

ISBN:

9780134015187

Author:

John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson

Publisher:

PEARSON

SEE MORE TEXTBOOKS

. Suppose that a gene underwent a mutation that changed a GAA codon to UAA. (a) Name the amino acid encoded by the original triplet. (b) Identify a tRNA anticodon that could translate the nonsense UAA triplet. (c) What other amino acid could be encoded by the mutant tRNA?