Hardy-Welnberg Equilibrlum Scenario In a population of beetles, the dominant shell color is black while the recessive shell color is brown. There are only two observed variations and black shells are believed to be completely dominant to brown shells (following Mendellan genetics rules). The beetles are an endangered species, so the zoo where they live keeps a very close count on the population in hopes of returning them to the wild someday. The total number of beetles in the exhibit is 1,387. 956 beetles are black. Using the information provided above, what is the frequency of homozygous dominant individuals? Approximately 19% of the beetles. O Approximately 31% of the beetles. O Approximately 49% of the beetles. Approximately 69% of the beetles. Clear selection Using the information provided above, what is the frequency of heterozygous individuals? Approximately 19% of the beetles. O Approximately 31% of the beetles. Approximately 49% of the beetles. Approximately 69% of the beetles.

Hardy-Welnberg Equilibrlum Scenario In a population of beetles, the dominant shell color is black while the recessive shell color is brown. There are only two observed variations and black shells are believed to be completely dominant to brown shells (following Mendellan genetics rules). The beetles are an endangered species, so the zoo where they live keeps a very close count on the population in hopes of returning them to the wild someday. The total number of beetles in the exhibit is 1,387. 956 beetles are black. Using the information provided above, what is the frequency of homozygous dominant individuals? Approximately 19% of the beetles. O Approximately 31% of the beetles. O Approximately 49% of the beetles. Approximately 69% of the beetles. Clear selection Using the information provided above, what is the frequency of heterozygous individuals? Approximately 19% of the beetles. O Approximately 31% of the beetles. Approximately 49% of the beetles. Approximately 69% of the beetles.

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter44: Population Ecology

Section: Chapter Questions

Problem 1SQ: Most commonly, individuals of a population show a _______ distribution within their habitat. a....

See similar textbooks

Similar questions

ocesses/Se are the same se two trees are NOT the same At some point in the past, foxes arrived in the Arctic (far northern latitudes) and we able to establish a population. Now, there is a white population of foxes that lives there. Which of the following was the primary change that occurred gradually over time in the Arctic fox population, eventually resulting in foxes with white fur? O The fur color of each individual fox within the population gradually changed. O The frequencies of foxes with different fur colors within the population changed. O Mutations occurred to meet the need of the fox population in the new environment. O Foxes that survived longest gained white fur in their old age, which they passed on to their offspring, tion 15
In a large, randomly mating population, the frequency of an autosomalrecessive lethal allele is 0.20. What will the frequency of this allele be inthe next generation if all homozygotes die before reproducing?
Most commonly, individuals of a population show a _______ distribution within their habitat. a. clumped b. random c. nearly uniform d. none of the above
A farmer is raising rabbits. The average body weight in his population ofrabbits is 3 kg. The farmer selects the 10 largest rabbits in his population,whose average body weight is 4 kg, and interbreeds them. If the narrowsenseheritability of body weight in the rabbit population is 0.7, what is theexpected body weight among the offspring of the selected rabbits?
Frequency of recessive allele In frult fly population over time -0.8어 0.6 04 0.2 10 Generatlon The graph above represents the frequency of a recessive allele in the parental generation (0 on the x -axis) of a hypothetical fruit fly population and throughout 10 subsequent generations. The frequency of the dominant allele during the fifth generation is Frequency of recessive allele
700 peak 1 600 500 400 300 200 3- 100 Peak 6 - Stripes Peak 7 Peak 5 Spur Length Petal Tips Peak 4 -Anthers Stigmas Blade Color Spur Color - Petal Color Peak 2 Peak 3
two color variations: bright blue and bluish-gray. Bright blue coloration is a recessive condition that is rare in the original population (less than 5% of the birds have the trait). A small flock of 5 wrens is blown by a storm onto a new island that is 100 miles away from their old home. 3 of the 5 birds were blue-gray and the other 2 were bright blue. This new population thrives on the island as it is the only bird species present on an island with lots of food and no predators to hunt them. Over the next 10 years, the 5 birds and their descendants reproduce and populate the island, creating a population that is made up of about 40% bright blue wrens. later, a hawk species is blown over to the island. This hawk hunts the smaller wrens using its excellent vision. The bluish-gray birds blend in better with the landscape compared to the bright blue birds. Name the specific mechanism of microevolution that the wren scenario displays when they were first blown over to the new…
If these conditions held constant – what would the expected heterozygosity be in thepopulation today (2018 to deal with a clean integer value for generations)?1b. In 1884 the population had grown to 106 when disaster struck the island. Of the 19 adult menon the island, 15 were in the same fishing boat that capsized, leaving only 4 adult men alive onthe island. These desperate times may have changed the sex ratio of the breeding population onthe island. Let’s say that now, each man fathered children with an average of 1.5 differentwomen (male:female ratio of 1:1.5). If we start back with a heterozygosity of 0.5 from this point,given the effective population size on Tristan da Cunha, what is the expected heterozygosity inthe current population 7 generations later?1c. The scenarios described in 1a and 1b are examples of which two evolutionary phenomena,respectively?
Different species of crickets have distinct songs, andthey use these songs for mate recognition. Researcherscrossed two species of Hawaiian crickets (Laupala paranigra and L. kohalensis) whose songs are distinguishedby pulse rate (the number of pulses per second; Shaw etal., Molecular Ecology 16, 2007, 2879–2892.) Then, theymapped QTL in the F2 population derived from thiscross. Six autosomal QTL were detected. The mean traitvalues (pulses per second) at the three genotypic classesin the F2 for each QTL are shown in the table below,where P indicates the L. paranigra allele and K indicatesthe L. kohalensis allele.a. Calculate the additive (A) and dominance (D) effectsand the D/A ratio for each of the six QTL.b. Which of these QTL shows the greatest amount ofdominance?c. Which of these has the largest additive effect?d. The mean pulse rate for L. kohalensis is 3.72, and it is0.71 for L. paranigra. Do all six QTL act in the expecteddirection with the L. kohalensis allele conferring a…
180- 170- Figure 1. For each of more than 200 human societies, the average height of the men is plotted against the average height of the women. The diagonal line shows where the points would fall if men and women were of equal height. From Rogers and Mukherjee (1992). 160- 150- 140- 140 150 160 170 180 Female stature (cm) tionry ysin.e 2. Using an evolutionary approach, explain the evolution of sexual dimorphism in height among men and women, Is this difference due to natural or sexual selection? How do know? you Male stature (cm)
@ 2 W S Rehpogs are mythical creatures. They are small and not very smart. Rehpogs live on the ground in a flat, warm habitat. Their fur texture and color ranges from thick purple fur to thin pink fur, depending on allele distribution. The dominant fur allele (R) codes for thick purple fur. The recessive allele (r) codes for thin pink fur. REMEMBER: a phenotype (fur color) is the physical expression of a genotype (two- letter code for the alleles present in that individual). Each individual has two alleles for fur color: X RR genotype is homozygous dominant = Thick purple fur phenotype Rr genotype is heterozygous = Thick purple fur (because of the presence of one dominant allele) rr genotype is homozygous recessive = Thin pink fur (because of the absence of a dominant allele) For the purposes of this experiment, Rehpogs mate once per year and produce two offspring each year. Rehpogs are monogamous, faithful and fertile. # 3 e d C C $ 4 r f V % 5 t g Oll 6 b y h & 7 O 8 n JL u i j O L m…
What is the chi-square value of the population the original counts are the largest pumpkin allele is 98, 80 are heterozygous for medium size, and 20 are homozygous recessive for small size.