In cases of negative frequency-dependent selection, _______ phenotype typically has _______ fitness A the least common...
In cases of negative frequency-dependent selection, _______ phenotype typically has _______ fitness
|
A |
the least common the lowest |
|
B |
the most common the highest |
|
C |
the least common the highest |
|
D |
the most common intermediate |
|
e |
intermediate the lowest |
Homework Answers
In cases of negative frequency-dependent selection, _______ phenotype typically has _______ fitness
Answer - C. The least common
the highest
i.e. in cases of negative frequency-dependent selection, __the least common_____ phenotype typically has ___the highest____ fitness.
In the frequency dependent selection ,
fitness of a phenotype depends on how common it is in the population,
in negative-frequency dependent selection the fitness of a phenotype increases it becomes less common .
Add Answer to:
In cases of negative frequency-dependent selection, _______
phenotype typically has _______ fitness
A
the least common...
Why does the fitness of a phenotype depend on frequency-dependent selection? A. Because selection favors the...
Why does the fitness of a phenotype depend on frequency-dependent selection? A. Because selection favors the least common phenotype. B. Because the least number of alleles are at that locus. C. Because sexual selection produces dimorphism. OD. Because frequency-dependent selection acts against extreme phenotypes.
Both negative-frequency dependent selection and heterozygote advantage can lead to a stable polymorphism. Answer the following...
Both negative-frequency dependent selection and heterozygote advantage can lead to a stable polymorphism. Answer the following questions. A) Of the two mechanisms, which is guaranteed to produce a stable polymorphic equilibrium? Which is not? Explain. (A polymorphic equilibrium is one in which both alleles are present). B) Of the two mechanisms, which could apply to bacteria? Which could not?
Find the calculations for the data of this population? a) Calculate the relative fitness for each...
Find the calculations for the data of this
population?
a) Calculate the relative fitness for each of the
three genotypes?
b) What is the mean fitness of this population, and
how do you expect it to change in response to selection?
c) Based on the calculations in a), calculate the
values of h and s. What type of selection has occured?
d) If the surviving individuals mate at random, what
will be the genotype frequencies in the next generation (...
balancing selection Which of the following is an incorrect statement about balancing selection? A. Regardless of...
balancing selection
Which of the following is an incorrect statement about balancing selection? A. Regardless of the initial frequency of an allele, its frequency will eventually reach the same equilibrium frequency under balancing selection B. Balancing selection can maintain genetic variation even when mutation is absent. C. For a biallelic locus with alleles A1 and A2, balancing selection occurs when genotype A1A2 has the highest fitness. D. Balancing selection could occur at a locus on the Y chromosome
Under what conditions would you expect mycorrhizal symbiosis to have the most NEGATIVE (least beneficial) fitness...
Under what conditions would you expect mycorrhizal symbiosis to have the most NEGATIVE (least beneficial) fitness consequences for bean plants? A. When they are planted in tropical soils with very low nutrient availability B. When they are planted in Nebraska soils that have abundant soil pathogens C. When they are planted in Nebraska soils to which urea fertilizer has been added D. When they are planted in Nebraska soils to which NPK fertilizer and pesticides have been added E. When...
For each of the following mechanisms (a-h), consider how it will affect genetic diversity (i.e., diversity...
For each of the following mechanisms (a-h), consider how it will affect genetic diversity (i.e., diversity of alleles) within a population and select one of the following three options that best describes this effect: (i) increase/maintain, (ii) eliminate, or (iii) no effect [No written explanation necessary]. a. Positive frequency dependent selection b. Negative frequency dependent selection c. Selection in favor of a dominant phenotype d. Selection in favor of a recessive phenotype e. Selection favoring heterozygotes over homozygotes f. Mutation...
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar...
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar morphology since the Mesozoic era? a. stabilizing b. directional c. diversifying d. sexual e. artificial 17. Which scenario will demonstrate disruptive (diversifying) selection? a. There is heterozygote advantage (heterozygous individuals have the highest fitness). b. Female flies collect sperm from different males in her sperm bag. c. Individuals with intermediate phenotype are inferior competitors against homozygous individuals d. Insects become resistant to the most...
Nitrogen fixation is a key component of biogeochemical cycling. It also represents an important inter-species interaction,...
Nitrogen fixation is a key component of biogeochemical cycling. It also represents an important inter-species interaction, which is: A. Commensalism between bacteria and animals B. Competition between plants and fungi C. Predation of bacteria by plants D. Mutualism between plant and bacteria In 1983, a population of dark-eyed junco birds became established on the campus of the University of California, San Diego (UCSD), which is located many miles from the junco's normal habitat in the mixed-coniferous temperate forests in the...
Climate change is a threat to the existence of many species.
QUESTION 2 Climate change is a threat to the existence of many species. Which of the following limits to natural selection hinders the adaptation of species to the new climate conditions? The developmental plans of plants and animals are too complex. They cannot cope with the warmer temperatures. Mutations happen so frequently that beneficial alleles change before natural selection can substantially increase their frequency Many species not have gene variants in their gene pool that are beneficial in higher temperatures. Climate change happens so...
Under what conditions would you expect mycorrhizal symbiosis to have the most NEGATIVE (least beneficial) fitness...
Under what conditions would you expect mycorrhizal symbiosis to have the most NEGATIVE (least beneficial) fitness consequences for bean plants? A. When they are planted in tropical soils with very low nutrient availability B. When they are planted in Nebraska soils that have abundant soil pathogens C. When they are planted in Nebraska soils to which urea fertilizer has been added D. When they are planted in Nebraska soils to which NPK fertilizer and pesticides have been added E. When...
Why does the fitness of a phenotype depend on frequency-dependent selection? A. Because selection favors the least common phenotype. B. Because the least number of alleles are at that locus. C. Because sexual selection produces dimorphism. OD. Because frequency-dependent selection acts against extreme phenotypes.
Find the calculations for the data of this
population?
a) Calculate the relative fitness for each of the
three genotypes?
b) What is the mean fitness of this population, and
how do you expect it to change in response to selection?
c) Based on the calculations in a), calculate the
values of h and s. What type of selection has occured?
d) If the surviving individuals mate at random, what
will be the genotype frequencies in the next generation (...
balancing selection
Which of the following is an incorrect statement about balancing selection? A. Regardless of the initial frequency of an allele, its frequency will eventually reach the same equilibrium frequency under balancing selection B. Balancing selection can maintain genetic variation even when mutation is absent. C. For a biallelic locus with alleles A1 and A2, balancing selection occurs when genotype A1A2 has the highest fitness. D. Balancing selection could occur at a locus on the Y chromosome
16. Which mode of natural selection is demonstrated by the Ginkgo tree today remaining essentially similar morphology since the Mesozoic era? a. stabilizing b. directional c. diversifying d. sexual e. artificial 17. Which scenario will demonstrate disruptive (diversifying) selection? a. There is heterozygote advantage (heterozygous individuals have the highest fitness). b. Female flies collect sperm from different males in her sperm bag. c. Individuals with intermediate phenotype are inferior competitors against homozygous individuals d. Insects become resistant to the most...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago