1. In Eastern Gray Squirrels, the allele for Greay coat color (G) is dominant to the...
1. In Eastern Gray Squirrels, the allele for Greay coat color (G) is dominant to the allele for black coat color (g). In a population of 200 squirrels, there are 18 black squirrels. The population is in Hardy-Weinberg equilibrium. a. What is the genotype of the 18 black squirrels? b. What is the frequency of the bb genotype in this population? c. What is the frequency of the b allele? d. What is the frequency of the B allele? e. What is the frequency of the BB genotype in this population? f. What is the frequency of the Bb genotype in this population? g. How many grey coated squirrels are in the population?
2. The squirrels in problem 1 mate randomly and produce offspring. a. What is the frequency of the B allele among the offspring? b. What is the frequency of the b allele among the offspring?
3. A population has the following genotype frequencies, AA = 0.81, Aa = 0.18, aa = 0.01. The population is in Hardy-Weinberg equilibrium. a. What is the frequency of the A allele in this population? b. What is the frequency of the allele “a” in this population?
4) You are studying a population of 2000 butterflies during 1 month you record 300 births and 75 deaths estimate r and calculate the population size in 3 months.
5) A population of dragonflies is growing logistically, if the carrying capacity is 500 dragonflies and r = 0.1individuals (individual X month) what is the maximum growth rate for the population?
6) On the next page is the Life table for the common mud turtle that we looked at in class. A) Using this calculate R0 and T for turtles between the ages of 0 and 10. B) Are these values the same as when we use all the data? Why or why not?
7) Explain 3 reasons why a rare species is more likely to go extinct.
8) In an experiment looking at diet choice Bosler and Hay (1996) fount that sea urchins preferentially ate more temperate sewed than tropical seaweed. This was attributed to differences in the chemical defenses in the seaweeds. How could you test this with optimal foraging models?
Homework Answers
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1. In Eastern Gray Squirrels, the allele for Greay coat color
(G) is dominant to the...
The coat color gene of a population of squirrels is defined by a dominant allele G,...
The coat color gene of a population of squirrels is defined by a dominant allele G, which encodes a gray coat, and a recessive allele g, which encodes a black coat. In a population, genetic typing reveals the genotypic distribution to be 50 GG, 30 Gg, and 20 gg. If this population is in equilibrium, then what should the genotypic frequency of Gg squirrels in this population be? 0.52 0.46 0.42 0.55
coat color is due to a dominant allele (W), black coat color to its recessive allele...
coat color is due to a dominant allele (W), black coat color to its recessive allele unnett squares for each of the following crosses and answer the questions. 2. In sheep, white tw). Construct P d frequency fo a. A black sheep crossed to a black sheep. List the genotypes, phenotypes, an each of the offspring b. A white sheep, the product of a black x white cross, is crossed with a black sheep. List the genotypes, phenotypes, and frequency...
In wolves, gray coat color (G) is dominant to black (g) and brown eyes (B) are...
In wolves, gray coat color (G) is dominant to black (g) and brown eyes (B) are dominant to blue (b). The genes that control these traits are located on different chromosomes. What are the gametes made by a wolf with the genotype Bbgg? Multiple Choice A. None of the answers are correct. B. BG; Bg; bG; bg C. B; b; and g D. Bb and gg E. Bg and bg An allele is best described as Multiple Choice...
In a population of Mendel's garden peas, the frequency of the dominant A (purple flower) allele...
In a population of Mendel's garden peas, the frequency of the dominant A (purple flower) allele is 80%. Letp represent the frequency of the A allele and q represent the frequency of the a allele. Assuming that the population is in Hardy-Weinberg equilibrium, what are the genotype frequencies? A. 16% AA, 40 % Aa, 44 % aa B. 80% AA, 10 % Aa, 10 % aa C. 50 % AA , 25 % As , 25 % aa * E....
A population of flour beetles has 1000 individuals. Normally the beetles are red in color; however,...
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...
19. Two different gene loci are responsible for determining mouse coat color. A recessive lethal allele...
19. Two different gene loci are responsible for determining mouse coat color. A recessive lethal allele contributing to yellow coat color also exists for one of these two gene loci. The following genotypic and phenotypic information about the mouse coat color alleles is known: (6) Agouti = A-B- • Yellow = AA'B-or A'aB-or A'ab- Lethal (inviable zygote) = A'A- Black = aaB- Albino = -bb a. A cross is made that produces 2 yellow, 1 black, and 3 albino mice....
The allele for color blindness is inherited as a recessive allele. Using letter B (normalallele) and...
The allele for color blindness is inherited as a recessive allele. Using letter B (normalallele) and b (color blind allele) Answer the questions below: 1.What genotype will be normal 2.What genotype willhave color blindness 3.Color blindness is found in about 8% of the population. Using the Hardy-Weinberg formula, determine the frequency of: a.Homozygote dominant b.Heterozygote c.Homozygote recessive
Question 25 2 pts In dragons, the dominant allele R causes solid tail color, and the...
Question 25 2 pts In dragons, the dominant allele R causes solid tail color, and the recessive alleler results in white spots on a colored background. The black coat color allele Bis dominant to the brown allele b, but these genes can only be expressed if the animal has an mm genotype at a third gene locus. Animals that are M are yellow regardless of which allele from the Blocus is present. A mating between a solid yellow-tailed male dragon...
Homework for lab 12: The allele for color blindness is inherited as a recessive allele. Using...
Homework for lab 12: The allele for color blindness is inherited as a recessive allele. Using letter B (normal allele) and b (color blind allele) Answer the questions below: 1. What genotype will be normal 2. What genotype will have color blindness 3. Color blindness is found in about 8% of the population. Using the Hardy-Weinberg formula, determine the frequency of a. Homozygote dominant b. Heterozygote c. Homozygote recessive
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple...
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple dominant and recessive relationship at one locus. Shiny coat color (H) is dominant to dull coat color (h). In an animal shelter, the shelter workers take a tally of dogs with shiny coats and those with dull coats. Of the 153 dogs, 88 have shiny coats. Assuming the dogs are in Hardy-Weinberg equilibrium for this trait, find the frequency of the dominant allele H...
coat color is due to a dominant allele (W), black coat color to its recessive allele unnett squares for each of the following crosses and answer the questions. 2. In sheep, white tw). Construct P d frequency fo a. A black sheep crossed to a black sheep. List the genotypes, phenotypes, an each of the offspring b. A white sheep, the product of a black x white cross, is crossed with a black sheep. List the genotypes, phenotypes, and frequency...
In a population of Mendel's garden peas, the frequency of the dominant A (purple flower) allele is 80%. Letp represent the frequency of the A allele and q represent the frequency of the a allele. Assuming that the population is in Hardy-Weinberg equilibrium, what are the genotype frequencies? A. 16% AA, 40 % Aa, 44 % aa B. 80% AA, 10 % Aa, 10 % aa C. 50 % AA , 25 % As , 25 % aa * E....
19. Two different gene loci are responsible for determining mouse coat color. A recessive lethal allele contributing to yellow coat color also exists for one of these two gene loci. The following genotypic and phenotypic information about the mouse coat color alleles is known: (6) Agouti = A-B- • Yellow = AA'B-or A'aB-or A'ab- Lethal (inviable zygote) = A'A- Black = aaB- Albino = -bb a. A cross is made that produces 2 yellow, 1 black, and 3 albino mice....
Question 25 2 pts In dragons, the dominant allele R causes solid tail color, and the recessive alleler results in white spots on a colored background. The black coat color allele Bis dominant to the brown allele b, but these genes can only be expressed if the animal has an mm genotype at a third gene locus. Animals that are M are yellow regardless of which allele from the Blocus is present. A mating between a solid yellow-tailed male dragon...
Homework for lab 12: The allele for color blindness is inherited as a recessive allele. Using letter B (normal allele) and b (color blind allele) Answer the questions below: 1. What genotype will be normal 2. What genotype will have color blindness 3. Color blindness is found in about 8% of the population. Using the Hardy-Weinberg formula, determine the frequency of a. Homozygote dominant b. Heterozygote c. Homozygote recessive
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple dominant and recessive relationship at one locus. Shiny coat color (H) is dominant to dull coat color (h). In an animal shelter, the shelter workers take a tally of dogs with shiny coats and those with dull coats. Of the 153 dogs, 88 have shiny coats. Assuming the dogs are in Hardy-Weinberg equilibrium for this trait, find the frequency of the dominant allele H...
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