Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 8.3, Problem 5TQ
Summary Introduction
To review:
The concept that one gene codes for two proteins with different amino acid sequences.
Introduction:
The process by which functional gene product is formed from a gene is called gene expression. Gene expression gives rise to
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How can a single gene encode multiple versions of a protein?
Does a sequence contain a gene?
What is a closed genome?
Chapter 8 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 8.1 - Prob. 1TQCh. 8.1 - Prob. 2TQCh. 8.1 - Prob. 3TQCh. 8.3 - Prob. 1TQCh. 8.3 - Prob. 2TQCh. 8.3 - Prob. 3TQCh. 8.3 - Prob. 4TQCh. 8.3 - Prob. 5TQCh. 8.3 - Prob. 6TQCh. 8.3 - Prob. 7TQ
Ch. 8.3 - Prob. 8TQCh. 8.6 - Prob. 1TQCh. 8 - Prob. 1RQCh. 8 - Prob. 2RQCh. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQCh. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Prob. 13RQCh. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - Prob. 16RQCh. 8 - Prob. 17RQCh. 8 - Prob. 1TQCh. 8 - Prob. 2TQCh. 8 - Prob. 3TQ
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- What percentage of the DNA in the genome actually corresponds to genes? How much is actually protein-coding exons? What makes up the rest?arrow_forwardWhat is a gene? Provide at least two different definitons and explain.arrow_forwardHow many introns are present on a gene that consists of 2 exons?arrow_forward
- If the gene undergoing protein synthesis consists of 24 bases, how many codons does that result in? How many amino acids will the protein consist of?arrow_forwardWhat is a gene? Why are genes for rRNA and tRNA considered to be genes even though they do not produce polypeptides?arrow_forwardWhat is a segmented genome?arrow_forward
- Consider Molecule X, which is found in all living cells. This molecule is transcribed from a stretch of DNA in the nucleus. Each nucleobase on the DNA produces a matching nucleobase on this molecule. Every 3-base codon specifies an amino acid in a protein. What is the name of X? Your answer should be one word, or a short two- or three-word phrase. Spelling counts. Note: if there is more than one possible answer, separate each answer with a comma. x 5arrow_forwardWhat is a gene? How many oxons are in the basic structure of a genearrow_forwardA geneticist discovers that two different proteins are encoded by the same gene. One protein has 56 amino acids, and the other has 82 amino acids. Provide a possible explanation for how the same gene can encode both of these proteins.arrow_forward
- If you know the sequence of amino acids in a protein, what does the genetic code table allow you to infer about the sequence of base pairs in the gene that specifies that protein?arrow_forwardWhat does the White gene code for?arrow_forwardConsider a single base insertion mutation between the 3rd and 4th codons in a natural gene that encodes a protein 100 amino acids long. Is it more likely that the protein produced by this mutant allele will be shorter or longer than 100 amino acids long?arrow_forward
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