Dihybrid Crosses In guinea pigs, black (B) is dominant to brown color (b). Short hair (H) is dominant to long hair (h). Cross a guinea pig that is true breeding black with short hair to a Guinea Pig that is true breeding brown with long hair. Genotypes of parents: Black/short Brown/long. Gametes from black/short guinea pig: Gametes from brown/long guinea pig: What will the genotype(s) of the offspring be? What will the phenotype(s) of all the offspring be?

Dihybrid Crosses In guinea pigs, black (B) is dominant to brown color (b). Short hair (H) is dominant to long hair (h). Cross a guinea pig that is true breeding black with short hair to a Guinea Pig that is true breeding brown with long hair. Genotypes of parents: Black/short Brown/long. Gametes from black/short guinea pig: Gametes from brown/long guinea pig: What will the genotype(s) of the offspring be? What will the phenotype(s) of all the offspring be?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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If a fruit fly that has long wings and a gray body (LIGG) mated with another fruit fly that has long wings and a gray body (LIGG), what would be the phenotypic ratio of their offspring? Also, list the different phenotypes. Do the cross! L=long wings, l=short wings, G=gray body, g=black body. 6) Phenotypic ratio:
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n the Asiatic Black Bear (a normal XX:XY mammal XX: species) there are two traits under investigation. One trait is a white chest spot which can be either circular (+) or oval (ov). The second trait relates to the fur color with two phenotypes: black (+) and a reddish brown (b). A reddish brown female with a circular chest spot was crossed to a black male also with a circular chest spot. Use this information and the data below on their offspring to answer the following questions: Males: All reddish brown colored with 75% circular spot and 25% oval spot. Females: All black colored with 75% circular spot and 25% oval spot a) Which general type of chromosome does each trait reside on? Fur color gene ________________ Chest spot gene _________________ b) What are the genotypes of the two individuals that were crossed? c) What would the phenotypes and phenotypic ratio be if the original female was crossed with a reddish brown male with an…
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A class of students mated fruit flies to study the inheritance of traits. The crosses and their results are described below. Cross 1: A female fruit fly with red eyes mates with a male fruit fly with brown eyes producing 63 offspring. All 63 offspring in this first generation have red eyes. Cross 3: A female fruit fly with black and tan striped body color mates with a male with black body color. In this first generation, al 56 offspring have black and tan striped body color. Cross 2: A red-eyed male and a red- eyed female from the first-generation mate to produce a second generation of flies. Out of the 98 offspring produced, 74 have red eyes and 24 have brown eyes. Cross 4: A black and tan striped male and a black and tan striped female from the first-generation mate to produce a second generation of flies. Out of the 103 offspring, 76 have black and tan striped body color and 27 have black body color. How do meiosis and gene expression…
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