EBK BIOLOGY
5th Edition
ISBN: 9780133954425
Author: Maier
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 15, Problem 9LTB
Summary Introduction
Introduction:
Small populations can work distinctly in comparison to larger populations. They are usually the outcome of a population bottleneck from larger populations, resulting in a reduced genetic diversity and loss of heterozygosity, and shifts in allele frequencies, and loss or fixation of alleles.
A small population is more vulnerable to genetic and demographic stochastic events that can influence the long-term survival of the population. Thus, small populations are generally at the threat of endangerment or extinction. Hence, their conservation becomes a priority concern.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The frequency of the homozygous recessive
genotype of a given gene in a given population is
0.04. The frequency of the dominant allele in this
population is
Between Ithaca and Geneva, NY at the old Seneca Army Depot is a herd of white tailed deer (Odocoileus virginianus). The species is normally brown. The Army Depot is closed, but offers tours to see the deer herds. There are 800 deer in the population, 160 of which are white (yy). Typically expression of this recessive allele makes the individuals more susceptible to predation, but the Army Depot is fenced off, providing protection from most predators. These brown-eyed deer are not albinos, but rather leucistic (lacking pigmentation in their hair only). Management of the Seneca white deer on the Army Depot increased the proportion of deer exhibiting the trait.
a) What is the frequency of the recessive (white) allele in the population?
b) What is the predicted frequency of carriers of the leucistic trait in the population.
1A) When you have extreme inbreeding (i.e. same genotypes mate to give rise to the next generation), the percent of heterozygotes will decrease by ________ % a generation, whereas the percent of AA homozygotes will increase ________ % each generation and the percent of aa homozygotes will increase ________ % each generation .
60, 40, 0
none
50, 25, 25
50, 10, 40
25, 50, 25
1B) What is the one measurement we have to make if we want to know the percentage of particular genotypes within an actual population, assuming complete dominance and two alleles?
the frequency of dominant phenotypes
the frequency of heterozygous genotypes
the frequency of recessive phenotypes
all of the options are correct
the frequency of heterozygous phenotypes
Chapter 15 Solutions
EBK BIOLOGY
Ch. 15 - Prob. 1LTBCh. 15 - Compare and contrast the species interactions of...Ch. 15 - Prob. 3LTBCh. 15 - Current rates of species extinction appear to be...Ch. 15 - According to the generalized species-area curve,...Ch. 15 - Prob. 6LTBCh. 15 - Prob. 7LTBCh. 15 - Which of the following is an example of a...Ch. 15 - Prob. 9LTBCh. 15 - Prob. 10LTB
Knowledge Booster
Learn more about
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
- The small remaining cheetah populations in the world are at risk of inbreeding depression . Which one or more of the following is true about inbreeding depression ? It is the result of reproduction in closely related individuals . It can increase the likelihood of recessive genetic diseases . It results in more variation in alleles . Answers a and b are both true . Answers a and d about both true .arrow_forward23. _____________ occurs when parents that are close relatives mate, resulting in harmful effects for the offspring. Environmental stochasticity Inbreeding depression Genetic stochasticity The small populations effectarrow_forwardAnswer true or false for each of the following statements: a. Inbreeding tends to reduce the ability of species to adapt, and most species have behaviours that tend to reduce inbreeding, including our own. b. The ideology of race is largely a political and economic necessity of colonization and domination. c. d. In the video, "A Class Divided", Dr. Jane Elliott showed that students who experienced being "on top" and "on the bottom" had lower test scores afterwards, due to trauma from her experiments in class. d. Archaeological remains are often changed by natural factors, but rarely by cultural ones.arrow_forward
- The frequency of a recessive allele in a population is 50%. What is the frequency of the dominant allele?arrow_forwardPlease help answerarrow_forwardA certain population of Sistrurus milarius, there exists an allele “d" which has the frequency of 25%. This allele confers the ability to allow the organism to grow to lengths exceeding 3m. This population occurs in the northern 2/3 of Alabama. Out of a population of 80, find the following: # of individuals who are homozygous dominant # individuals who have the recessive diseasearrow_forward
- Explain why the phenotypic frequency of the tuskless trait is increasing in the African elephant population. Justify your answer using the vocabulary words Genetic Diversity, Polymorphic, Adaptation, Natural Selection, and fitness, the article "Tusklessness in African Elephants" and/or your phenotypic frequency calculations.arrow_forwardIn northern Canada, a population of rabbits was predominantly white in color. The allele for white color is recessive (g) while the allele for gray color is dominant (G). Over the last several decades, the average annual temperature of this area has increased and the long-term deposits of ice and snow have become scarce. In this case, the frequency of a previously rare allele becomes more frequent in the population. What is the most likely genotypes of the population rabbits living in northern Canada in 1850, if G is the allele for gray and g the allele for white? A) 85% g and 15% G B) 85% gg and 15% Gg C) 85% Gg and 15% Gg D) 85% GG and 15% gg Noyt Gradedarrow_forwardThe owner of a kennel is concerned about the possibility of a recessive condition in one of his prize male dogs. Suppose the recessive allele is known to have a frequency of 0.09 in the population. If the male dog is mated to 9 females each producing 5 puppies, what is the probability that his prize male will be detected as a carrier (to three decimal places)? Your Answer: Plz 0.874 erplain ? This nutmberarrow_forward
- A gene for flower color in pea plants has two alleles, A and a. Given the following genotype frequencies, which of these populations shows evidence of possible inbreeding? AA-0.38, Aa-0.22, aa-0.40 O AA-0.25, Aa-0.5, aa-0.25 O AA-0.01, Aa-0.18, aa-0,81 O AA-0.12, Aa-0.64, aa-0.24 O AA-0.09, Aa-0.42, aa-0.49arrow_forwardA genetic mutation that causes deafness in humans has an autosomal recessive pattern of inheritance. In a study of a population of 235 Turkish children, 48 displayed the recessive phenotype. The frequency of the heterozygous genotype in the population of Turkish children described above is?arrow_forwardThe frequency of the allele "Z" in a population is 65%. Find the % of the following: Homozygous Recessive Heterozygousarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY