Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 19, Problem 16QP
Measuring Genetic Diversity in Human Populations
How would a drastic reduction in a population’s size affect that population’s gene pool?
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The figure shows a bar plot of moles from three parks in New York City. Each vertical bar represents genotypes from 18
genomic locations in one animal. The bars are color coded, with similar genotypes represented by the same color.
Population A
Population B
Population C
From the data in the figure, are these three populations genetically isolated from one another?
Incorrect
Population A is isolated from the other two populations.
What environmental factors could explain this?
One park may not be connected to any other park by a greenway.
Only two parks may be connected by greenways.
All the parks may be connected to each other by greenways.
None of the parks may be connected to each other by greenways.
frequency of adaptive heritable traits in a population changes as
REQUIREMENTS FOR NATURAL SELECTION TO OCCUR:
17a. Assuming that both types of pom-poms are present in the population, what do you think
would happen to the pom-pom population if the black forest experienced a prolonged drought
so all the trees died and the habitat became red grassland?
17b. Next, think about an alternative scenario. Suppose that natural selection over many
generations had eliminated all the red pom-poms in the black forest habitat so only black pom-
poms survived. After that, a prolonged drought resulted in this habitat turning into a red
grassland. Would natural selection for pom-pom color occur? Why or why not?
17c. The above scenarios are showing that in order for natural selection to occur
must exist within a trait.
in your own words, describe how genetic diversity makes a population resilient to environmental change
Chapter 19 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 19.8 - Why dont genetic markers on the Y chromosome...Ch. 19.8 - Prob. 2GRCh. 19 - If you suspected that heterozygous carriers of a...Ch. 19 - If allele frequencies in the hemoglobin gene are...Ch. 19 - Prob. 1QPCh. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - Prob. 4QPCh. 19 - Prob. 5QPCh. 19 - How Can We Measure Allele Frequencies in...
Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - Using the HardyWeinberg Law in Human Genetics...Ch. 19 - Prob. 10QPCh. 19 - Using the HardyWeinberg Law in Human Genetics In a...Ch. 19 - Prob. 12QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Prob. 15QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Prob. 17QPCh. 19 - Prob. 18QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Natural Selection Affects the Frequency of Genetic...Ch. 19 - Prob. 21QPCh. 19 - Prob. 22QPCh. 19 - The Evolutionary History and Spread of Our Species...Ch. 19 - Prob. 24QPCh. 19 - Genomics and Human Evolution The Denisovan genome...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Measuring Genetic Diversity in Human Populations Why is it that mutation, acting alone, has little effect on gene frequency?arrow_forwardDescribe natural selection and give an example of natural selection at work in a population. Please elaborate or explain in 10-15 sentences, please?arrow_forwardSuppose that gene B occurs in a unicorn population where the frequency of the B1 allele is 0.5 and the frequency of the B2 allele is 0.4. What is the frequency of the B3 allele, assuming that there are only 3 alleles in the population? O The frequency of B3 = 0.1 because 0.5 +0.4+ B3 = 1. O The frequency of B3= (0.4)2 = 0.16 O The frequency of B3= 0.9 because 0.5 +0.4 = 0.9 O There is not enough information to determine the frequency of the B3arrow_forward
- 8 of 14 口 Question 8 My Response Which of the following best explains the relationship between inherited traits and the fitness of individuals in a generation of poison- dart frogs? Individuals have different inherited traits, so each individual's chance of surviving predation and reproducing is different. The traits of the most successful individuals become more common in the next generation. Individuals have different inherited traits, so each individual's chance of surviving predation and reproducing is different. The frequency of traits in the generation will be identical to the frequency of traits in the next generation. Individuals have different inherited traits, but the II 画arrow_forwardMeasuring Genetic Diversity in Human Populations Successful adaptation is defined by: a. evolving new traits b. producing many offspring c. leaving more offspring than others d. moving to a new locationarrow_forwardWhat can you conclude about genetic variation and population size? O the larger the population, the greater the variation in allele frequency over time O the larger the population, the smaller the variation in allele frequency over time there was no relationship between population size and variation in allele changearrow_forward
- Please show work - Evolution: Population genetics: 4. An inbreeding population of guppies loses about 1/5th of its heterozygosity every generation. What is the effective population size? Please show work - calculationsarrow_forwardWhat if three genotypes have different fitness levels, so that both kinds of homozygotes are more likely to survive and reproduce than are heterozygotes (only 2% as likely). The population follows all other HWE assumptions. FF fitness level = 1.0 Ff fitness level = 0.02 ff fitness level = 1.0 Will heterozygotes be maintained in the population after 100 generations? Make a graph of the three genotype frequencies over time, to show the answer. (include a graph)arrow_forwardsuppression behavioral natural selection advantage desirable Question 1 Natural selection occurs over a very period of time. Question 2 is the process of small genetic in organisms leading to the gradual development of a species. Question 3 Inherited traits that provide an to survival also make that organism more likely to reproduce, thereby passing on the trait. acer marrow_forward
- Give typing answer with explanation and conclusion A population of snails has a deleterious mutation (m) with a mutation rate of 0.01. Heterozygotes with this mutation will show the deleterious phenotype and have a selection coefficient of 0.4. If allele frequencies in the population are M = 0.99 and m = 0.01, will the number of mutant alleles in the next generation increase/decrease/remain the same?arrow_forwardWhat can you conclude about genetic variation and population size? Chose all answers that are true. O As population size decreases, the likelihood of losing alleles increases. O Smaller populations are more like to lose genetic diversity due to drift than larger populations. O Smaller populations lose alleles more quickly, in less generations, than larger populations. O Both allele fixation and allele loss represent loss of genetic diversity.arrow_forwardEVOLUTION ASSESSMENT - FINCHES Galápagos Ground Finches Between 1973 and 1978, the population of ground finches (a type of small bird) on the Galápagos Islands decreased. Scientists made observations of the population throughout that time period. They recorded and graphed differences in the distribution of traits over time. The two sets of graphs below come from the data they collected. Beak Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978 Wet 1973: all finches # of finches 30 # of finches 25 20 15 10 5 0 30 25 20 15 10 5 12-01 0 $4.9 80-84 30.0- 11.5-11.9 Beak Length (mm) Source: inquiryHub 35.0-39.9 40.0-44.9 12.5-12.9 13.0-13.4 13.5-13.9 14.0- Wing Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978 Wet 1973: all finches 65.0 Wing Length (mm) Source: inquiryHub 70.0-74.9 # of finches 75.0- 30 25 # of finches 20 10 5 0 30 25 20 15 O 10 5 0 Wet 1978: all finches 7.0-74 7.5-7.9 80-8.4 85-80 9.0-94 9.5-9.9 10.0-1 30.0-34.9 10.5-10.9 11.0-11.4…arrow_forward
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