Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 14.3, Problem 2C
Summary Introduction
To explain: The reason why certain genes in eukaryotic cells are present in multiple copies.
Introduction: Genes are sets of
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Explain why certain genes in eukaryotic cells are present in multiple copies.
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Explain how the primary transcript of a single eukaryoticgene can produce different proteins.
Chapter 14 Solutions
Biology (MindTap Course List)
Ch. 14.1 - Explain why bacterial and eukaryotic cells have...Ch. 14.1 - Prob. 1CCh. 14.1 - Prob. 2CCh. 14.2 - Prob. 2LOCh. 14.2 - Distinguish among inducible, repressible, and...Ch. 14.2 - Differentiate between positive and negative...Ch. 14.2 - Prob. 5LOCh. 14.2 - Prob. 1CCh. 14.2 - What structural features does the trp operon share...Ch. 14.2 - Prob. 3C
Ch. 14.2 - Prob. 4CCh. 14.3 - Prob. 6LOCh. 14.3 - Give examples of some of the ways eukaryotic...Ch. 14.3 - Prob. 8LOCh. 14.3 - Prob. 9LOCh. 14.3 - Prob. 10LOCh. 14.3 - Prob. 1CCh. 14.3 - Prob. 2CCh. 14.3 - Prob. 3CCh. 14.3 - Prob. 4CCh. 14.3 - Prob. 5CCh. 14 - The regulation of most bacterial genes occurs at...Ch. 14 - Prob. 2TYUCh. 14 - Prob. 3TYUCh. 14 - Prob. 4TYUCh. 14 - Inactive genes tend to be found in (a) highly...Ch. 14 - Prob. 6TYUCh. 14 - Which of the following is characteristic of genes...Ch. 14 - Through alternative splicing, eukaryotes (a)...Ch. 14 - A mutation that inactivates the repressor gene of...Ch. 14 - Which of the following is an example of positive...Ch. 14 - Prob. 11TYUCh. 14 - PREDICT Compare the types of bacterial genes...Ch. 14 - INTERPRET DATA Develop a simple hypothesis that...Ch. 14 - Prob. 14TYUCh. 14 - Prob. 15TYUCh. 14 - EVOLUTION LINK Suggest why evolution resulted in...Ch. 14 - Prob. 17TYU
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- All the cells of one organism share the same genome. However, during development, some cells develop into skin cells while others develop into muscle cells. Briefly explain how the same genetic instructions can result in two different cell types in the same organism.arrow_forwardExplain how eukaryotic genes sometimes produce multiple protein products?arrow_forwardDescribe the organization of a typical eukaryote gene.arrow_forward
- You are studying a large eukaryotic gene that is 439,515 base pairs long. You find the polypeptide that this gene produces in liver cells is 46,771 amino acids long. Your colleague studies the function of this gene in brain cells, and finds the polypeptide produced in the brain is much larger – 61,438 amino acids long. How do you explain this difference? Possible Answers: A. The cell cycle of liver cells is much longer than that of brain cells. B. This is due to alternative splicing. in the brain C. There was a different complement of sequence-specific transcription factor binding sites in the CRM of the brain cells. D. There is no 5' cap added to the gene product from the liver cells.arrow_forwardMany aspects of gene function can be nicely explained with the one-gene-one-enzyme hypothesis, which states that a gene controls the production of an enzyme. Which of the following findings about gene expression, though, requires an expansion of this simple concept? Choose an answer below: Non-enzyme proteins are made from genes too. Some genes code for RNA molecules only. Enzymes composed of different polypeptides are coded for by more than one gene. a and c, but not b a, b, and carrow_forwardHow can the same modification of the standard genetic code happen in two organelle genomes (chloroplasts and mitochondria) and in the same organism?arrow_forward
- Explain why it is sometimes difficult to locate genomic regions that encode a protein.arrow_forwardWhat are master genes? Explain why they are not present in prokaryotes.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
- A mutation creates a dominant negative allele of a particular gene. The gene encodes a protein that forms a trimer within the cell. If one or more of the subunits has the mutant structure, the entire trimeric protein is inactive. In a heterozygous cell, if the proteins of both alleles are present at the same levels, what percent of the trimers present in the cell will be active? A) 100% B) 5% C) 50% D) 33% E) 5%arrow_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_forwardIf a prokaryotic gene coding region is 42 nucleotides long, beginning with a start codon and ending with a stop codon, how many amino acids will it have?arrow_forward
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