Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 24.1, Problem 3LO
Summary Introduction
To determine: The reason that genomes evolve at different times.
Introduction: The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role.
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What are the mechanisms in which DNA genomes evolve? Discuss two or more and provide examples and why
Determine which of the genomic traits are associated with prokaryotes or eukaryotes. These traits include relative genome size.
number of genes, gene density, and number of exons.
Prokaryote
about one gene every 2000 to 100000 bp
relatively large, variable size genome
multiple introns
Answer Bank
relatively small genome
about one gene every 1000 bp
500 to 7000 genes
Eukaryote
6000 to 30000 genes
few, if any, introns
Describe the signiicance of mutations in terms of evolution.
Chapter 24 Solutions
Biology
Ch. 24.1 - Prob. 1LOCh. 24.1 - Prob. 2LOCh. 24.1 - Prob. 3LOCh. 24.2 - Prob. 1LOCh. 24.2 - Prob. 2LOCh. 24.2 - Prob. 3LOCh. 24.2 - Explain why genome size and genome number do not...Ch. 24.3 - Define the terms segmental duplication, genome...Ch. 24.3 - Prob. 2LOCh. 24.4 - Prob. 1LO
Ch. 24.4 - Prob. 2LOCh. 24.5 - Prob. 1LOCh. 24.5 - Prob. 2LOCh. 24.5 - Prob. 3LOCh. 24 - Prob. 1DACh. 24 - Prob. 1IQCh. 24 - Prob. 2IQCh. 24 - Prob. 3IQCh. 24 - Humans and pufferfish diverged from a common...Ch. 24 - Prob. 2UCh. 24 - Prob. 3UCh. 24 - Homologous genes in distantly related organisms...Ch. 24 - All of the following are believed to contribute to...Ch. 24 - What is the fate of most duplicated genes? a. Gene...Ch. 24 - Chimp and human DNA whole-genome sequences differ...Ch. 24 - Prob. 2ACh. 24 - Analyze the conclusion that the Medicago...Ch. 24 - Analyze why an herbicide that targets the...Ch. 24 - The FOX2 gene is associated with speech in human....Ch. 24 - One of the common misconceptions about sequencing...Ch. 24 - How does horizontal gene transfer (HGT) complicate...
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- Discuss the significance of mutations and explain the role of the environment in the evolutionary process. (Hint: Consider Lenski's study and what is demonstrated. Do not re-tell Lenski’s study)arrow_forwardexplain the reasons behind human being a focus of intensive genetic study.arrow_forwardWhat the world looks like due to mutation?illustratearrow_forward
- Explain how genetic mutations can eventually lead to evolution of a species.arrow_forwardOutline the different rates of evolution that are typically seen in different parts of a protein-encoding gene. What might account for these differences?arrow_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
- What is mutation? describe its type and how mutation and evolution are interrelated. Discussarrow_forwardDNA sequences can act as "tape measures of evolution". Scientists analyzing the human genome sequence were surprised to find that some regions of the human genome that are most highly conserved (similar to comparable regions in other species) don't code for proteins at all. Given what you've learned about "genes" speculate on reasons why this might be so.arrow_forwardGive typing answer with explanation and conclusion If you want to identify genes linked to autism in a mouse model, which genetic approach or approaches could you use? (Mark all that apply) A) Reverse Genetics B) Forward Genetics C) Optogenetics D) Population Geneticsarrow_forward
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