Imagine that you are asked to manage a population of wolves that have taken upresidence on an island off the coast of Alaska. Because prey resources are limited, theisland will support only about 50 wolves at any one time. What steps would you take toprevent inbreeding and genetic drift in the population in the future?

Imagine that you are asked to manage a population of wolves that have taken upresidence on an island off the coast of Alaska. Because prey resources are limited, theisland will support only about 50 wolves at any one time. What steps would you take toprevent inbreeding and genetic drift in the population in the future?

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 6TYU: The continued presence of the allele that causes sickle cell anemia in areas where falciparum...

See similar textbooks

Similar questions

Pikas are small mammals that live at high elevations on the talus slopesof mountains. Most populations located on mountaintops in Coloradoand Montana in North America are isolated from one another: the pikasdon’t occupy the low-elevation habitats that separate the mountaintopsand don’t venture far from the talus slopes. Thus, there is little gene flowbetween populations. Furthermore, each population is small in size andwas founded by a small number of pikas.A group of population geneticists proposes to study the amount ofgenetic variation in a series of pika populations and to compare theallelic frequencies in different populations. On the basis of the biologyand distribution of pikas, predict what the population geneticists willfind concerning the within- and between-population genetic variation.
Sometimes gene flow between populations can have negative effects, with one population receiving genes of lower fitness from another population. Which of the following below is a good case example of this observation? O Tibetian highland people interbreeding with lowland people producing children of intermediate hemoglobin proteins OInterbreeding of Texas and Florida Panthers have greater survivorship than inbred Florida Panthers O Male Townshend Warblers out compete male Hermt Warblers and mate with female Hermit Warblers O Wild steelhead interbreeding with captive steelhead produced offspring with lower relative fitness
Threatened species often have small, isolated populations where mating between relatives occurs. Let's assume one of these threatened species has a disease controlled by a gene that has two alleles A and a. Only individuals with two copies of the "a" allele have the disease and die before reproducing. Question: What are the effects of inbreeding on the frequency of the "a" allele, and the frequency of the disease in the population?
Inbreeding in a population causes a deviation fromHardy–Weinberg expectations such that there aremore homozygotes than expected. For a locus with arare deleterious allele at a frequency of 0.04, whatwould be the frequency of homozygotes for the deleterious allele in populations with inbreeding coefficientsof F = 0.0 and F = 0.125?
There is an outbred population of mice living in a farmer’s field. Mutations occur at a genecalled nurseryrhyme that cause a totally recessive form of blindness (h=0). These blind micedo not survive to reproduce because the farmer’s wife cuts off their tail (and other bits) witha carving knife. Surveying the field for baby mice you find that 3/10,000 mice are blind.A. Assuming that the population mates at random, what is the mutation rate of blindnesscausing alleles?B. Following more careful study you now find that there is actually a 20% reduction in theviability of heterozygotes for these mutations. What would you now estimate as themutation rate for this gene?
Two populations of snakes are separated by a river. The snakescross the river only on rare occasions. The snakes in the two populationslook very similar to each other, except that the members ofthe population on the eastern bank of the river have a yellow spoton the top of their head, whereas the members of the western populationhave an orange spot on the top of their head. Discuss twoexperimental methods that you might use to determine whether thetwo populations are members of the same species or members ofdifferent ones.
Is there evidence that random genetic drift in the inbred Swedish population had led to a decline in mean fitness that was sufficient to cause the extinction of the population? Here, I am asking about the Swedish population before the outbred snakes were introduced. What is the evidence for a decline in mean fitness, if you believe this happened?
Galapagos marine iguanas are differentiated by islands. However, the iguanas swim well, suggesting that gene flow can occur. You survey the frequency of allele A in Isla Tortuga and find that it is 0.33. In the next generation, the A allele frequency has gone up to 0.36. Because tiny Isla Tortuga lies close to giant Isla Isabela, you assume all migrants must come from there and follow a continent-island model. Allele frequency in Isla Isabela is 0.6 and stable. What proportion of alleles (m) entered Isla Tortuga from Isabela to explain your observations?
Has the Pingelapese population evolved? Explain. (Hint: Does inbreeding cause a change in allele frequencies?)
In a population, the frequencies of two alleles are B = 0.67 and b = 0.33. The genotype frequencies are BB = 0.50, Bb = 0.37, and bb = 0.13. Do these numbers suggest inbreeding? Explain why or why not.
What are the advantage and disadvantages of inbreeding in the economy? Give a solid example.
Consider the first copy of an allele for insecticideresistance that arises by mutation in a populationof insects exposed to an insecticide. Is this mutation an adaptation? If, after some generations,we find that most of the population is resistant,is the resistance an adaptation? If we discovergenetic variation for insecticide resistance in apopulation that has had no experience of insecticides, is the variation an adaptation? If an insectpopulation is polymorphic for two alleles, eachof which confers resistance against one of twopesticides that are alternately applied, is thevariation an adaptation? Or is each of the tworesistance traits an adaptation?