Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 18.4, Problem 1BC
Summary Introduction
To analyze:
How different gene family members vary in their affinity for oxygen.
Introduction:
Gene regulation is a mechanism which induce or repress the expression of a gene. In multicellular organisms, genes regulate in which cell type a particular gene should be expressed and in which developmental stage. So, gene regulation helps for cell differentiation and to organisms to proceed through developmental stages.
A gene family is a set of similar genes generated by the duplication of a single original gene. Example for such gene family is human hemoglobin subunits.
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Chapter 18 Solutions
Principles of Biology
Ch. 18.1 - In the procedure shown in this figure, has the...Ch. 18.1 - Refer back to Figure 9.16. Why are primers needed...Ch. 18.1 - Prob. 2CCCh. 18.1 - Prob. 3CCCh. 18.1 - Prob. 4CCCh. 18.1 - Prob. 2BCCh. 18.1 - Prob. 1TYKCh. 18.1 - Prob. 2TYKCh. 18.1 - Prob. 3TYKCh. 18.2 - Prob. 1CC
Ch. 18.2 - Prob. 2CCCh. 18.2 - Prob. 1TYKCh. 18.2 - Prob. 2TYKCh. 18.2 - Prob. 3CCCh. 18.3 - Prob. 1TYKCh. 18.4 - Prob. 1CCCh. 18.4 - Prob. 1BCCh. 18.4 - The sizes of eukaryotic genomes vary because more...Ch. 18.4 - The members of a gene family are called paralogs....Ch. 18.5 - Prob. 1CCCh. 18.5 - Based on their mechanism of movement, which type...Ch. 18.5 - Prob. 1TYKCh. 18.5 - A segment of DNA that moves via an RNA...Ch. 18 - Prob. 1TYCh. 18 - Prob. 2TYCh. 18 - Lets suppose you followed the protocols described...Ch. 18 - Prob. 4TYCh. 18 - Lets suppose you want to clone a gene that has...Ch. 18 - In the CRISPR-Cas technology used for mutating...Ch. 18 - Prob. 7TYCh. 18 - Prob. 8TYCh. 18 - Prob. 9TYCh. 18 - Prob. 10TYCh. 18 - Draw the structure of a dideoxyribonucleotide...Ch. 18 - Prob. 2CCQCh. 18 - Prob. 3CCQCh. 18 - Identify and discuss three important advances that...Ch. 18 - Prob. 2CBQ
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- What does the number of differences in rRNA sequences between two species represent?arrow_forwardWhen comparing evolutionary similarities between different genes within a gene family, it is usually more straightforward to compare genes by using the protein sequences of gene products rather than DNA sequences of the genes themselves. Explain why this is the case. (Write 5 points)arrow_forward. Figure 1-7 shows a simplified pathway for argininesynthesis in Neurospora. Suppose you have a specialstrain of Neurospora that makes citrulline but not arginine. Which gene(s) are likely mutant or missing inyour special strain? You have a second strain ofNeurospora that makes neither citrulline nor argininebut does make ornithine. Which gene(s) are mutant ormissing in this strain?arrow_forward
- Name three ways in which genetic information of bacteria can be changed.arrow_forwardThink about the different models we discussed about prokaryotic gene regulation and eukaryotic gene regulation.Which prokaryotic gene regulation do you think is the most similar to eukaryotic gene regulation? Compare and explain why.arrow_forwardIn humans, the AMY1 gene produces the enzyme amylase in cells of the salivary glands. Amylase breaks down starch (a polysaccharide) into the sugar maltose (a disaccharide). People from cultures with diets high in starch produce more amylase than people from cultures with diets low in starch because of a mutation in the AMY1 gene. Explain in two to three sentences why the frequency of this AMY1 mutation would have increased in frequency in populations with a high starch diet.arrow_forward
- Various strains of bacteria are able to transfer genes to eukaryotic hosts. This process of horizontal gene transfer often results in the formation of enzymes in the host organism that assist in metabolic pathways. Which of the following is the most likely explanation for why bacterial genes are able to successfully transfer genes that produce enzymes in eukaryotic cells? Bacteria and Eukarya have similar mechanisms for the formation and use of enzymes in metabolic processes. Bacteria and Eukarya use the same enzymes in all of their metabolic processes so the genes are interchangeable. Bacteria and Eukarya share similar reproductive mechanisms so the cells reproduce without recognizing foreign DNA. Bacteria and Eukarya have the same mechanism for replicating DNA so genes can easily be transferred between the two types of cells.arrow_forwardSee the hypothetical pathway answer the following questions. A) If an individual is homozygous for a null mutation in the gene that codes for Enz1, what would the result be? B) What would happen if an individual is heterozygous for a mutation that abolishes the activity of Enz2? C) What could happen to the offspring of the individuals described above (in a and b)? Assume that they only have the mutations described.arrow_forwardWhy is gene duplication within globin genes beneficial?arrow_forward
- Based on the images attached, what does the similarity in the sequences tell you about the ermB gene found in these bacteria? Would we expect high or low sequence similarity when considering the possibility of horizontal gene transfer?arrow_forwardWhat it is called when two regions of the genome in different species share similarities like those shown in the image below? D. melanogaster (chr3R scaffold) CG12746 Rheb CRMP CG2931 CG2926 upstream genes downstream genes D. yakuba CG12746 Rheb collapsin response mediator protein (CRMP) CG2931 CG2926 upstream genes downstream genesarrow_forwardThe Selfish Gene is a radical theory that argues that all living creatures are essentially vehicles for their genes- hence, we all are a “survival machine" for our genes. In the light of what you have learned about the molecular structure and function of the gene, is this perspective still relevant? Cite specific biological phenomena to prove your point. References:arrow_forward
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