Biology: Concepts and Investigations - With Access
4th Edition
ISBN: 9781260053777
Author: Hoefnagels
Publisher: MCG
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Chapter 12, Problem 8WIO
Summary Introduction
To determine:
The mechanism of evolution that cause random changes in allele frequencies also determine the reason for random changes.
Concept Introduction:
Evolution is simply defined as descent with modification, which means inherited traits change from one generation to another. Thus, evolution is a modification or change in an allele’s frequency that is analyzed as the number of copies of that gene and the division of the entire number of alleles in the population.
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Chapter 12 Solutions
Biology: Concepts and Investigations - With Access
Ch. 12.1 - What are two ways to define evolution?Ch. 12.1 - Prob. 2MCCh. 12.2 - How does the history of evolutionary thought...Ch. 12.2 - What did Darwin observe that led him to develop...Ch. 12.2 - How might artificial selection and natural...Ch. 12.2 - What is the modern evolutionary synthesis?Ch. 12.3 - Prob. 1MCCh. 12.3 - Prob. 2MCCh. 12.3 - How can natural selection favor different...Ch. 12.3 - Prob. 4MC
Ch. 12.3 - Prob. 5MCCh. 12.4 - Prob. 1MCCh. 12.4 - Prob. 2MCCh. 12.4 - Prob. 3MCCh. 12.4 - Prob. 4MCCh. 12.5 - Prob. 1MCCh. 12.5 - Prob. 2MCCh. 12.6 - Prob. 1MCCh. 12.6 - What is the difference between intrasexual...Ch. 12.7 - Prob. 1MCCh. 12.7 - South China tigers have two color patterns...Ch. 12.7 - Prob. 3MCCh. 12.7 - Prob. 4MCCh. 12.8 - What hypothesis did Conover and Munch test?Ch. 12.8 - Prob. 2MCCh. 12 - Prob. 1MCQCh. 12 - Prob. 2MCQCh. 12 - What is the most accurate way to ex plain the...Ch. 12 - Prob. 4MCQCh. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - List and describe five mechanisms of evolutionCh. 12 - How did James Hutton, Georges Cuvier,...Ch. 12 - Explain how understanding evolution is important...Ch. 12 - How does variation arise in an asexually...Ch. 12 - Write a paragraph that describes the connections...Ch. 12 - Explain how harmful recessive alleles can persist...Ch. 12 - Fraggles are mythical, mouselike creatures that...Ch. 12 - Prob. 8WIOCh. 12 - Jellyfish Lake, located on the Pacific island of...Ch. 12 - Prob. 10WIOCh. 12 - Review the Survey the Land scape figu re in th e...Ch. 12 - Describe a s ituation in which each of the five...Ch. 12 - Add the terms genotype, phenotype, allele...
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- How does natural selection act on genetic variation? How can this lead to adaptations? How can a change in allele frequency mechanize evolution?arrow_forwardIndividuals who are SS homozygotes suffer from a debilitating condition called sickle-cell anemia, which drastically decreases survival. But the S allele has not been eliminated by natural selection. Why?arrow_forwardWhat is the F.A.M.E. evidence of evolution? What are the examples of each?arrow_forward
- if the recessive allele r is lethal, what genotypes will natural selection benefits ?arrow_forwardAn organism’s___________ refers to the specific alleles found within its chromosomes, while the traits that these alleles produce are called its_________ . Which of these does natural selection act on?__________arrow_forwardHow might gene flow between populations living in different habitats actually interfere with each population's adaptation to it's local environment?arrow_forward
- If the frequency of human birth weights were subject to evolution by natural selection, what phenotype(s) would selection be acting against given the observed pattern of neonatal mortality? What kind of selection is this?arrow_forwardIn a particular population of mice, certain individualsdisplay a phenotype called short tail, which is inherited as a dominant trait. Some individuals display arecessive trait called dilute, which affects coat color.Which of these traits would be easier to eliminatefrom the population by selective breeding? Why?arrow_forwardWhat is the difference between selection and genetic drift andhow do they promote evolutionary change?arrow_forward
- Why does genetic variation make it possbile for changes in populations to occur through natural selection.arrow_forwardExplain genetic drift (and it’s various types) as a force of evolution (how does genetic drift contribute to biological change?)arrow_forwardI had trouble with explaining how natural selection affects alllele and genotype frequency. Does natural natural selection affect alleles by causing adaption to happen increasing the frequency of advantageous alleles?arrow_forward
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