When a premature stop codon results due to a sponțaneous mutation in the genetic code of bacterial DNA, after translation the protein will be: O A) Unchanged in terms of amino acid length and function as normal. B) Truncated in terms of amino acid length but will still function as normally. C) Unchanged in terms of amino acid length but will not function properly. D) Truncated in terms of amino acid length and non-functional.

When a premature stop codon results due to a sponțaneous mutation in the genetic code of bacterial DNA, after translation the protein will be: O A) Unchanged in terms of amino acid length and function as normal. B) Truncated in terms of amino acid length but will still function as normally. C) Unchanged in terms of amino acid length but will not function properly. D) Truncated in terms of amino acid length and non-functional.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter10: From Proteins To Phenotypes

Section: Chapter Questions

Problem 20QP: If an extra nucleotide is inserted in the first exon of the beta globin gene, what effect will it...

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Given the following stretch of mRNA, what would be the sequence of the corresponding non-template DNA? 5' - UUG-CAA-UCG-CAG-UGC-CGC-AUA-GAU - 3' Group of answer choices 3' - AAC-GTT-AGC-GTC-ACG-GCG-TAT-CTA - 5' 5' - TTG-CAA-TCG-CAG-TGC-CGC-ATA-GAT - 3' 5' - AAC-GTT-AGC-GTC-ACG-GCG-TAT-CTA - 3' 3' - AAC-GUU-AGC-GUC-ACG-GCG-UAU-CUA - 5' 3' - TTG-CAA-TCG-CAG-TGC-CGC-ATA-GAT - 5'
What is the "genetic code" and what aspect of post translational modification virtually mandates that "genetic code" applies to mRNA rather than DNA?
What could be the effect of a deletion, substitution or addition that alters the sequence of the stop codons?
The process of translation involves three distinct phases: initiation, elongation, and termination. Which of the following is an accurate statement of a molecular event that occurs during one of the phases? A. All phases of translation require the energy of ATP to fuel molecular processes. B. The first components to assemble in initiation are the large ribosomal subunit, mRNA, and the initiator tRNA molecule. C. A peptide bond forms between the new amino acid and the amino acid at the C-terminus of the growing polypeptide chain. D. Amino acids are added to the polypeptide chain that sits in the A site of the translation initiation complex.
A codon that specifies the amino acid Gly undergoes a single-base substitution to become a nonsense mutation. In accord with the genetic code, is this mutation a transition or a transversion? At which position of the codon does the mutation occur?
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