3. Let us consider a relative of the platypus, the eastern long beaked echidna: Zaglossus bartoni. Its beak is either cream (C) or dark (D), and its fur is either black (B) or albino (A). [Obj 13, 15] a. Examine the table below, which shows the results of several crossings of the eastern long beaked echidna. Determine the relationship between white/dark, and black/albino. Parent genotypes Parent Phenotypes i. ii. Cream black x Cream albino ?x? Cream black x Cream black ?x? Dark black x Cream albino ?x? Relationships between the alleles for beak color and fur color: b. Determine the parental genotypes for the three crosses: CB 18 24 11 CA DB DA 19 00 00 8 8 6 10 3 9 c. Select ONE of those rows and determine if the data follow the expected phenotypic ratios. In your analysis, you should clearly state the null and alternative hypotheses, show appropriate work, list a test statistic and p-value, then draw the appropriate conclusion.

3. Let us consider a relative of the platypus, the eastern long beaked echidna: Zaglossus bartoni. Its beak is either cream (C) or dark (D), and its fur is either black (B) or albino (A). [Obj 13, 15] a. Examine the table below, which shows the results of several crossings of the eastern long beaked echidna. Determine the relationship between white/dark, and black/albino. Parent genotypes Parent Phenotypes i. ii. Cream black x Cream albino ?x? Cream black x Cream black ?x? Dark black x Cream albino ?x? Relationships between the alleles for beak color and fur color: b. Determine the parental genotypes for the three crosses: CB 18 24 11 CA DB DA 19 00 00 8 8 6 10 3 9 c. Select ONE of those rows and determine if the data follow the expected phenotypic ratios. In your analysis, you should clearly state the null and alternative hypotheses, show appropriate work, list a test statistic and p-value, then draw the appropriate conclusion.

Name: Please asap 3. Let us consider a relative of the platypus, the eastern
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Description: Please asap 3. Let us consider a relative of the platypus, the eastern long beaked echidna: Zaglossus bartoni.Its beak is either cream (C) or dark (D), and its fur is either black (B) or albino (A). [Obj 13, 15]a. Examine the table below, which shows

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 16RQ: A farmer raises black and white chickens. To his surprise, when the first generation of eggs hatch...

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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…
A farmer raises black and white chickens. To his surprise, when the first generation of eggs hatch all the chickens are black with white speckles throughout their feathers. What should the farmer expect when the eggs laid after interbreeding the speckled chickens hatch? All the offspring will be speckled 75% of the offspring will be speckled, and 25% will be black 50% of the offspring will be speckled, 25% will be black, and 25% will be white 50% of the offspring will be black and 50% of the offspring will be white.
1. A new species of animal called the rekamriliob has been found in the wild. The lab you work in has been tasked with studying its genetics. So far, there have been 2 main phenotypes found in the wild. Through selective breeding, your lab has determined that the gene for purple color (P) is dominant to the gene for golden color (p). Another lab has determined that the thick limb trait is dominant to the thin limb variety. If you breed a purebred purple thick limbed rekamreliob male with a golden thin limbed female, you get 100% thick limed offspring that are purple in color. If you take two of these organisms and breed them together, please predict the following. Assume that rekameliobs lay an average of 32 eggs. The gametes produced if the genes are unlinked b. genes The expected numbers of the possible phenotype in the offspring with unlinked The gametes produced if the genes are linked (list all possibilities, and show which ones are the result of crossing over) d. List the…
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A naturalist is visiting an island in the middle of Lake Superior and observes a new bird species with three distinct types of beaks. Those with short crushing beaks (BB) feed on oak nuts; those with long delicate beaks (bb) pick the seeds from pine cones, and those with intermediate beaks (Bb) feed on both oak nuts and pine cones. (Note: because their beaks are structurally & functionally inadequate, few Bb offspring successfully reach adulthood). Let’s assume that this difference in beak morphology is the result of incomplete dominance in a single gene. In a year in which most of the food available on the island is in the form of hard oak nuts, which of the mated pairs below will produce the most offspring that will be able to survive to adulthood? Use Punnett squares to back up your answer. List all phenotypes and genotypes. Bb x Bb Bb x bb BB x Bb BB x bb
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4) In frost moths, two alleles of one gene determine the character difference of spotted versus striped wings and two alleles of a separate, independent gene determine the character difference of orange wing background versus white wing background. The results for four matings of moth phenotypes are shown in the image attached. a) Assign the letter “s” to the wing pattern gene and letter “w” to the background color gene. Write in the capital letter for the dominant phenotype and the lower case letter for the recessive phenotype. Also, write whether each allele is dominant (D) or recessive (R). Wing pattern gene: Spotted - letter assignment:____ - dominant or recessive:____ Striped - letter assignment:____ - dominant or recessive:____ Background color gene: orange: - letter assignment:____ - dominant or recessive:____ white: - letter assignment:____ - dominant or recessive:_____ b) Based on the four matings in Question 4: What are the genotypes of each parent in each cross? If more…
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A naturalist is visiting an island in the middle of Lake Superior and observes a new bird species with three distinct types of beaks. Those with short crushing beaks (BB) feed on oak nuts; those with long delicate beaks (bb) pick the seeds from pine cones; and those with intermediate beaks (Bb) feed on both oak nuts and pine cones. (Note: because their beaks are structurally & functionally inadequate, few Bb offspring successfully reach adulthood). Let’s assume that this difference in beak morphology is the result of incomplete dominance in a single gene. In a year in which most of the food available on the island is in the form of hard oak nuts, which of the mated pairs below will produce the most offspring that will be able to survive to adulthood? Use Punnett squares to back up your answer. List all phenotypes and genotypes. a.) Bb x Bb b.) Bb x bb c.) BB x Bb d.) BB x bb
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