In a large forest, two populations of hamsters are present. Population A lives in a stable environment with abundant resourcesand few predators. Population B inhabits a more unpredictable environment with scarce resources and high predation pressure.Population A likely has more[Select]traits, than population B.[Select]k-selectedWhich of the following traits n-selectedon A? [Select]a-selectedr-selected In a large forest, two populations of hamsters are present. Population A lives in a stable environment with abundant resourcesand few predators. Population B inhabits a more unpredictable environment with scarce resources and high predation pressure.Population A likely has more [Select]traits, than population B.Which of the following traits is most likely found in Population A? [Select][Select]Early reproduction and high fecundityMinimal parental care and rapid population growthHigh parental investment and long lifespanHigh offspring mortality and short generation timePrevious

For the given scenario, let's analyze the questions one by one. First Question: "Population A likely…

Answered: In a large forest, two populations of…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Huntington’s Disease A population of people has a gene that determines whether they will developHuntington’s disease. The gene has two alleles, ”N” for normal allele and ”h” for the Huntington’s allele.According to the Hardy-Weinberg equilibrium, the frequency of the ”h” allele in the population is 0.005. Part AWhat is the frequency of the ”N” allele in the population?Part BWhat is the expected proportion of people in the population who are carriers of the Huntington’s disease?Part CWhat is the expected proportion of people in the population who are non-carriers of the Huntington’s disease?Part DWhat is the expected proportion of people in the population who will develop Huntington’s disease?
In a species of lily, the color of the flower's petals is determined by a dominant purple allele (F) or recessive white allele (f). One hundred flowers in Hardy-Weinberg equilibrium were sampled, and only 15% of the population showed the phenotype of white. Which of the following numbers represents the calculated value of the recessive white allele frequency? 0.92 0.39 0.15 0.85
Using an aggression index score, the mean aggression index (AI) of a population of honey badgers was measured as 8. The mean AI of the reproducing individuals was 3. After a generation of mating the population shows a response to selection (R) of -2 on the aggression index. What is an estimate for the proportion of phenotypic variation that is environmental?
What are some of the traits present in the newt population described in the article?How might these traits change from individual to individual? (Hint: Do you think the newts are all exactly the same color or size?)
Consider a gene with two alleles, C and M. The table below describes fitness for different genotypes in two populations. Fitness CC CM MM Population 1 1.0 1.0 0.6 Population 2 0.9 0.9 1.0 Assume that both populations begin with frequencies of 0.5 for each allele, population size is infinite, and there is no migration between populations. Which of the following statements is true based on the information you have on these populations?
In a population of frogs, individuals with green coloration are camouflaged on leaves and are less likely to be eaten by predators. However, as the number of green frogs increases, predators learn to search for them more effectively, making it advantageous to be a less common color. What type of selection is occurring in this scenario? Disruptive selection 8888 Positive frequency-dependent selection Stabilizing selection Negative frequency-dependent selection Directional selection
A population of beetles exhibits two phenotypes: red and blue. The genotypes RR and Rr result in red coloration and the genotype rr results in blue coloration. The alleles are equally prevalent (i.e. both frequencies are 0.5). A new predator is introduced and preferentially feeds on blue beetles. What do you expect to happen to the allele frequencies over time? The frequency of the rallele is expected to increase because of predation pressure. O The frequency of the Rallele is expected to increase because of predation pressure. There is not enough information to predict what will occur. O There will be no change because of the Hardy-Weinberg equilbrium.
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Consider a hypothetical beetle population, in which beetle colour variesalong a spectrum from light to dark green. When introduced to anenvironment characterized by light green moss and dark green shrubs,both light and dark green beetles have higher fitness than medium greenbeetles. Which of the following terms best describes this situation? Select one:O a. Stabilizing selectionO b. Directional selectionO c. Disruptive selectionO d. Sexual selection
Two populations of snails live on opposite sides of a city. The frequency of the recessive allele (q) of a trait is 0.1 in the population on the south side of the city and 0.6 in the population on the north side. Some individuals from the north side are moved to the south side. After migration, 35% of the individuals on the south side are migrants (originally from the north side). Determine how this migration event affected q in the south side population. Round to the nearest thousandth. Express all values as a frequency in the format “0.###” What is the value of m? What is q in the south side population after migration (aka, q’)?
You are studying a population of mulberry plants. The average mulberry produces 55 leaves, but an insect herbivore preferentially kills plants with more leaves, and therefore the remaining population has an average of 35 leaves after the insects kill certain plants due to the herbivory. The heritability of leaf number is 0.75. What is the response to the selection imposed by the insect herbivores? a. -10 leaves b. -20 leaves c. -15 leaves d. -5 leaves
You are examining the gene in your snail population that confers resistance to a parasite. There are multiple alleles at this locus. Identify the characteristics that would result in the greatest increase in allele frequency (not necessarily the greatest allele frequency) in one single generation of the resistant allele. Answer Resistant allele acts… Initial resistant allele frequency… Selection strength is… a. dominantly high weak b. recessively low strong c. dominantly low strong d. recessively high weak a. Answer a. b. Answer b. c. Answer c. d. Answer d.

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