2 The table below gives descriptions of four female mice that live in a beach area whichis mostly tan sand with scattered plants.Color of Mouse FurBlackTanTan and BlackCreamAge at Death2 months8 months4 months2 months# pups produced by each113femaleRunning Spoed8 cm/sec.6 cm/sec.7 cm/sec5 cm/sec.a. According to the definition given for fitness, which mouse would biologistsconsider the lilleel? Explain why thie mouee would be Lhe ileel.b. If a mouse's fur color is generally similar to its mother's color, what color fur wouldbe most common among the pups?

According to the definition of fitness, an organism is fit when it successfully adapt to its…

? The table below gives descriptions of four female mice that live in a beach area which is mostly tan sand with scattered plants. Color of Mouse Fur Dlack Tan Tan and Dlack Cream Age at Death # pups produced by each female 2 months 8 months 4 months 3 2 months 11 Running Speed 8 cm/sec. 6 cm/sec. 7 cm/sec. 5 cm/sec. a. According to the definition given for fitness, which mouse would biologists consider the fillel? Explain why Ihis mouse would be Lhe fillel. b. If a mouse's fur color is generally similar to its mother's color, what color fur would be most common among the pups?

? The table below gives descriptions of four female mice that live in a beach area which is mostly tan sand with scattered plants. Color of Mouse Fur Dlack Tan Tan and Dlack Cream Age at Death # pups produced by each female 2 months 8 months 4 months 3 2 months 11 Running Speed 8 cm/sec. 6 cm/sec. 7 cm/sec. 5 cm/sec. a. According to the definition given for fitness, which mouse would biologists consider the fillel? Explain why Ihis mouse would be Lhe fillel. b. If a mouse's fur color is generally similar to its mother's color, what color fur would be most common among the pups?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter19: The Evolution Of Populations

Section: Chapter Questions

Problem 15RQ: The good genes hypothesis is a theory that explains what? why more fit individuals are more likely...

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Which of the following represents an example of qualitative phenotypic variation? a. the lengths of peoples toes b. the body sizes of pigeons c. human ABO blood types d. the birth weights of humans e. the number of leaves on oak trees
1.) Consider flower color in a hypothetical population of 7,000 flowers, red flowers (4,000), blueflowers (2,000) are dominant over pink flowers. If there are 1,000 pink flowers, find thefollowing:a. Frequency of dominant (red flower) alleleb. Frequency of recessive (pink flower) allelec. Frequency of each genotype (homozygous dominant, homozygous recessive,heterozygous)d. Make a Punnett square and use the rule of multiplication.
1. Suppose you are studying a trait due to three genes that all additively affect the same trait. The genes are A, B, and C. Capital letters symbolize the "phenotype-adding" allele and lower case letters symbolize the "non-adding" allele. (In other words, the behavior of the genes is like those affecting wheat kernel color in the Nilsson-Ehle experiment presented in class). If AaBbCc is testcrossed to aabbcc, how many different phenotypes will be produced in the progeny?
2.) Answer the following questions about Labrador breeding and phenotypes.In all cases, if the answer is “no,” explain why.If the answer is “yes,” give the genotypes that the offspring and parents must be. Could two yellow labs have a black lab puppy? Could two chocolate labs have a yellow puppy? Could two chocolate labs have a black lab puppy? Could a black lab and a yellow lab have a chocolate lab puppy? Could a chocolate lab and a yellow lab (who had two chocolate parents) have a black lab puppy?
2. In a summer squash, white fruit color (W) is dominant over yellow fruit (w) and disk-shaped fruit (D) is dominant over sphere-shaped fruit (d). If a squash plant true-breeding for white, disk-shaped fruit is crossed with a plant true-breeding for yellow, sphere-shaped fruit, what are the possible genotypes and phenotypes of their offspring. 3. In mice, the ability to run normally is a dominant trait. Mice with this trait are called running mice (R). The recessive trait causes mice to run in circles only. Mice with this trait are called waltzing mice (r). Hair color is also inherited in mice. Black hair (B) is dominant over brown hair (b).For each of the following problems, determine the parent genotypes, determine possible gametes then construct a Punnett Square to solve.a. Cross a heterozygous running, heterozygous black mouse with a homozygous running, homozygous black mouseb. Cross a homozygous running, homozygous black mouse with a heterozygous running brown mouse.
3. Codominance is when two dominant alleles of contrasting pair fully expressed at the same time in heterozygous individual. Which of the following situation is an example ofcodominance?A. Jo mated the red bull with the white cow to produce a roan cow.B. Melissa traces her blood type by crossing the blood type of herparents.C. James passed a genetic disorder hypertrichosis pinnae aurisor hairy ear to his son.D. Tess crosses the red carnation flower plant with white flowercarnation plant to produce a pink flower plant.
3. Codominance is when two dominant alleles of contrastingpair fully expressed at the same time in heterozygousindividual. Which of the following situation is an example ofcodominance?A. Jo mated the red bull with the white cow to produce a roan cow.B. Melissa traces her blood type by crossing the blood type of herparents.C. James passed a genetic disorder hypertrichosis pinnae aurisor hairy ear to his son.D. Tess crosses the red carnation flower plant with white flowercarnation plant to produce a pink flower plant.
1. For a particular rodent, black fur (B) is dominant over brown fur (b), and a long tail (L) is dominant over a short tail (l). Create a Punnett square that shows the genotypes of all the possible offspring that could result from the breeding of 2 rodents that are both heterozygous for both traits. Include the percentage/ratio of occurrence for each phenotype.
1. In a particular bird species, the tips of the feathers are tinged with blue, white, or silver. The BB genotype calls for blue-tipped feathers. The WW genotype calls for white-tipped feathers. The BW genotype calls for an intermediate with silver-tipped feathers. A mating occurs between a blue-tipped bird and a white-tipped bird. What types of offspring would be expected? Give the genotypes and phenotypes of the possible offspring and the probability of each. 2. The bird species described in question 5 has an ornamental plumage on its head. The plumage feathers are either flexible or stiff. The allele for flexible plumage is dominant over the allele for stiff plumage. A male who is heterozygous for plumage and has silver-tipped wings mates with a female who has stiff plumage with silver-tipped wings. What types of offspring would be expected from this cross? Give the probability of each. 3. In some cats, the gene for tail length shows incomplete dominance. When a cat with a…
1. Describe what you think would happen if a male mouse acquired a mutation that gave it tan or a sandy colored belly AND female mice wanted to mate with this more about 1 % more than a male mouse with a white belly? 2. Now, suppose that the females were really wild about the sandy colored belly of this male mouse. The females wanted to mate with this lucky mouse about 10% more than males with a white belly? What would happen to the frequency of sandy colored bellies in this population over time? 3. What is the selective pressure at work in questions 1 & 3? 4. Describe what this statement means: "The division of humans into races by using skin color is an arbitrary social construct." 5. What are melanosomes? Name the cell type that produces melanosomes. 6. What happens to melanosomes after they are released into keratinocytes? 7. List the three factors that work together to create the range of skin colors we see today. 8. Describe the main function of keratinocytes and of…
6. Read the following sentence: “Even though people selectively breed to yield animals with desired traits, there are dangers to selective breeding.” What does yield mean as used in the text? a) To produce b) To surrender c) To endanger d) Not worth much money to remove
In general, offspring of bam swallows have tail lengths very similar to their parents. However, if the offspring are removed from their nests while young and transplanted to nests that have parents ofsignificantly different tail lengths, these birds tend to grow tail lengths similar to their "foster" parent types.What explains this result? 1.Tail length in barn swallows appears to be influenced by both genes and the environment.2.Tail length in barn swallows follows a genetic pattern of incomplete dominance.3.Tail length is a phenotypic trait that follows patterns of Mendelian inheritance.4.Tail length is not influenced by genotype in barn swallows.