The population of red foxes in Jefferson County (JeffCo) has a small percentage of black foxes. The black coloration is a result of a recessive trait. The number of black foxes in the population has remained stable for over 10 years. It is expected that the reintroduction of wolves to the area will result in a decrease in the proportion of black foxes in the population. explain why the population was likely stable for 10 years and then explain the likely mechanism for change in the future.
By defination a stable populations have a age specific fertility rates that remain constant throughout time. The population was stable over the period of 10 years as their were no apex predators available during this time.The black foxes were not geting hunted and hence maintained a stable population
Since the apex predator is reintroduced in the ecosystem ( phenomenon known as cascade effect ) will come into picture. Since black foxes are due to a recessive trait, it is very much possible that they get extinct with passage of time causing dramatic changes in the ecosystem structure and nutrient cycling.
The population of red foxes in Jefferson County (JeffCo) has a small percentage of black foxes....
A population of flour beetles has 1000 individuals. Normally the beetles are red in color; however, this population has a utation in the gene for body color that results in black beetles that are designated by the rr genotype. Red body color is dominant to black so the genotypes RR and Rr result in red beetles. Assume the population is in Hardy-Weinberg equilibrium, with a 50% frequency of each allele for body color. A) --- what is the frequency of...
45. Which of the following is NOT an indicator of biodiversity? A the number of species in a habitat c. the number of individuals in a population B. the number of alleles in a population D. the number of dient habitat types in an area one of these 46. Which species turned Guam into a silent island, devoid of birdcalls? A. the brown treenake B. European rabbits c. the cane toad 47. What type of mimicry is shown in the...
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive). There are 126 A1A1, 167 A1A2 and 88 A2A2. Is this population in Hardy-Weinberg equilibrium (3 pts)? In a population of Gragons, there are 3151 A1A1, 1678 A1A2 and 2014 A2A2 individuals. If the environment changes so that the homozygous recessive genotype suffers a reduction of fitness where its fitness is now 0.73, but the other genotypes are unaffected, what will be the frequency...
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For a start, male & female African elephants (Elephas maximus) differ in tusk development. Most males have tusks, while many females are tuskless, or have small tusks. (This suggests that the genetic contol of tusk development must be...
How Does Evolutionary Change Occur? "I soon perceived that selection was the keystone of man's success in making useful races of animals and plants. But how selection could be applied to organisms living in a state of nature remained for some time a mystery to me." - Charles Darwin Introduction Fundamentally, evolution is the idea that the form and behaviors of a species are not fixed - that they can change over time. Before Darwin was even born, some scientists...
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Although the following scenario is hypothetical, it is based on actual facts. Sickle cell anemia is an inherited form of anemia. Those with sickle cell anemia do not have enough healthy red blood cells to adequately carry oxygen to all the cells in their body. Normal red blood cells are flexible and round, and can easily move through the blood vessels. However, in...
My Study on Sickle Cell Anemia Research In 500 words, answer the following questions 1.Select your study sample 2. How have you selected your sample? 3. How will you select your sample population and give the rationale behind your decision Please type the solution on the keyboard so that I can copy and paste Q. No 1. Answer : Sickle cell disease : It is defined as it is a chronic heriditory form of Anemia, in which the red blood...
Any reflection or opinion on these two essays? Should Marijuana
be legal? 1 answer Within 200 words.
1.
A Brief History of the Drug War
Many currently illegal drugs, such as marijuana, opium, coca,
and psychedelics have been used for thousands of years for both
medical and spiritual purposes.
The Early Stages of Drug Prohibition
Why are some drugs legal and other drugs illegal today? It's not
based on any scientific assessment of the relative risks of these
drugs –...
Carlsberg in Emerging Markets A breeze of optimism blew through the office of Carlsberg A/S’s CEO, Jørgen Buhl Rasmussen. After finally gaining 100 percent control over the giant Russian brewery Baltic Beverages Holding (BBH), and with the investments in Western China beginning to bear fruit, the newly appointed CEO was confident that the Danish brewing company’s intensified focus on emerging markets would pay off. The company was counting on tapping the massive potential in emerging markets in order to achieve...
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Budgetary Policy and Economic Growth Errol D'Souza The share of capital expenditures in government expenditures has been slipping and the tax reforms have not yet improved the income...