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 19.3, Problem 2TYK
Summary Introduction
Introduction:
Hardy-Weinberg law states the genetic constituents. The allelic and genetic frequency of a population remain the same over generation to generation if no disturbing forces are acting.
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Which of the following are assumptions of the Hardy Weinberg equilibrium model? Mark all the correct assumptions.
Group of answer choices
there is no mutation
all genotypes have different fitness
large population sizes
sexual selection
There are five conditions that must be met for a population to be in Hardy-Weinberg equilibrium. Which of the following is not one of those conditions?
Group of answer choices
non-random mating
no migration
no natural selection
no mutation
large population size
Which of the following is not an assumption for a population that is in Hardy Weinberg equilibrium?
O Small population size
No natural selection
No gene flow into the population
No random mutations
Chapter 19 Solutions
Principles of Biology
Ch. 19.1 - Prob. 1TYKCh. 19.1 - Prob. 2TYKCh. 19.1 - The phrase an organism evolves is incorrect....Ch. 19.1 - Prob. 1BCCh. 19.2 - Explain how geography played a key role in the...Ch. 19.2 - Prob. 2CCCh. 19.2 - Prob. 3CCCh. 19.2 - Prob. 1TYKCh. 19.2 - Homologous traits show similarities because the...Ch. 19.3 - What is the frequency of pink flowers in a...
Ch. 19.3 - Prob. 1TYKCh. 19.3 - Prob. 2TYKCh. 19.4 - Lets suppose the climate on an island abruptly...Ch. 19.4 - Prob. 2CCCh. 19.4 - Prob. 3CCCh. 19.4 - Prob. 4CCCh. 19.4 - Prob. 1TYKCh. 19.4 - Prob. 2TYKCh. 19.4 - Prob. 3TYKCh. 19.5 - How does the bottleneck effect undermine the...Ch. 19.5 - Prob. 1TYKCh. 19.5 - Prob. 2TYKCh. 19.5 - Prob. 1BCCh. 19.6 - How does migration affect the genetic compositions...Ch. 19.6 - Prob. 1BCCh. 19.6 - Prob. 1TYKCh. 19.6 - Populations that experience inbreeding may also...Ch. 19 - Prob. 1TYCh. 19 - An evolutionary change in which a population of...Ch. 19 - Homology occurs because different species occupy...Ch. 19 - Prob. 4TYCh. 19 - Prob. 5TYCh. 19 - Prob. 6TYCh. 19 - Prob. 7TYCh. 19 - Prob. 8TYCh. 19 - Prob. 9TYCh. 19 - The micro-evolutionary factor most sensitive to...Ch. 19 - Prob. 1CCQCh. 19 - Prob. 2CCQCh. 19 - A principle of biology is that populations of...Ch. 19 - Prob. 1CBQCh. 19 - Prob. 2CBQ
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- Five conditions are required to maintain the Hardy–Weinberg equilibrium in a population. Closed population Large population Random mating No net mutations No natural selection If any of these conditions is not being met, the allele frequencies in the population will change, leading to microevolution in the population.Match each of the following scenarios to the Hardy–Weinberg condition that is NOT being met:An increase in antibiotic resistance among bacteria exposed to antibiotics occurs. AnswerCaribou from one herd move to a new area and breed with caribou of a completely different herd. Answer Among eastern bluebirds, more brightly coloured males breed with more brightly coloured females. AnswerDue to overhunting, there is little genetic diversity in the current population of bearded vultures, which have all descended from a population of only 36 birds. Answerarrow_forwardFive conditions are required to maintain the Hardy–Weinberg equilibrium in a population. Closed population Large population Random mating No net mutations No natural selection If any of these conditions is not being met, the allele frequencies in the population will change, leading to microevolution in the population.Match each of the following scenarios to the Hardy–Weinberg condition that is NOT being met:An increase in antibiotic resistance among bacteria exposed to antibiotics occurs. Caribou from one herd move to a new area and breed with caribou of a completely different herd. Among eastern bluebirds, more brightly coloured males breed with more brightly coloured females. Due to overhunting, there is little genetic diversity in the current population of bearded vultures, which have all descended from a population of only 36 birds.arrow_forwardHardy Weinberg equilibrium in a population refers to Group of answer choices equal numbers of females and males. lack of mutations affecting the observed phenotypes. equal numbers of dominant and recessive alleles. unchanging allele frequencies in successive generations. proportional numbers of each genotype.arrow_forward
- Which of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices Variation between individuals is not heritable. The environment is changing at a relatively slow rate. The population lives in a habitat where there are no competing species present. The population size is large.arrow_forwardWhich of the following terms are used to apply ONLY TO SELECTION, and never to just evolution. Choose all that apply. Cost/benefit Selective advantage/disadvantage Founder effect Allele frequencies Fitness Bottleneck effectarrow_forwardImagine a remote island inhabited by a population of lizards. To determine if this population is in Hardy-Weinberg equilibrium for gene X, which of the following conditions must be met? The lizard population should be at least 100 individuals and close to other large populations to avoid genetic drift. No selection, meaning that all individuals have an equal chance of survival and reproduction No gene flow due to migration between the island and other lizard populations Random mating among lizards without any preference to gene X No measurably significant mutations occurring in the lizard population at gene Xarrow_forward
- Which of the following terms are used to apply ONLY TO SELECTION, and never to just evolution. Choose all that apply. (1 or more are correct). founder effect fitness allele frequencies bottleneck effect selective advantage/disadvantage cost/benefitarrow_forwardThe following conditions are required for Hardy-Weinberg equilibrium: Mutation, non-random mating, migration and directional selection No migration a no selection No mutation of alleles, random mating and migration Non-random mating, differential frequency selection and no mutations Small population, no mutation and genetic driftarrow_forwardWhich of the following statements is true when considering this figure? It represents natural selection in a population. The purple marbles have reduced fitness. Outside forces destroy most of the population leaving a few survivors. The loss of the purple marbles from the population maintains population in Hardy-Weinberg Equilibrium. all of the ahove are truearrow_forward
- show the development of evolutionary thought by describing each theory first and giving example of each theory at in a population. LAMARCK'S LAMARCK'S DARWIN'S THEORY OF USE AND DISUSE THEORY OF NEED THEORY OF EVOLUTION BY NATURAL SELECTION.arrow_forwardThe Hardy–Weinberg principle states that allele and genotype frequencies remain constant from one generation to the next, as long as specific conditions are met.Choose Yes or No for the conditions that must be met from the provided statements below. Mutations are exponentially occurring. All members of the population breed. Everyone produces the same number of offspring. The population is infinitely large. There is no migration in or out of the population. No net mutations are occurring. Natural selection of beneficial traits is occurring. Natural selection is not occurring. All mating is completely random. Offspring are able to migrate out of the population.arrow_forwardNatural selection can be defined as: chance differences in organism traits. the chance for species numbers to increase rapidly. the processes that lead individuals to resemble their parents. the differential survival and reproduction of individuals. the genetic fixation of species.arrow_forward
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