5. There is a helpful shortcut for calculating the probability of genotypes resulting from a dihybrid cross (orany cross considering two or more pairs of alleles) that does not require drawing a very large Punnettsquare. This is done by first determining the probabilities of each trait alone (using a monohybrid cross)and then using the multiplication rule to combine the probabilities of all the genotypes being considered.Using our TtYy plants above, we would first assign each set of alleles to its own Punnett square asfollows:I tYyTTTTtY YYYytTttty YyУУa. Based on the Punnett squares above, what is the probability of being genotype tt in this cross?b. Based on the Punnett squares above, what is the probability of being genotype YY in this cross?c. Using the probabilities that you just calculated for the genotypes tt and YY, what is the probabilityof one offspring being both genotype tt and YY in this cross (use the multiplication rule)?d. What is the probability of an offspring of genotype TTYy?e. What is the probability of an offspring of genotype ttyy?f. What is the probability of an offspring of genotype TtYy?ト

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Description: 5. There is a helpful shortcut for calculating the probability of genotypes resulting from a dihybrid cross (orany cross considering two or more pairs of alleles) that does not require drawing a very large Punnettsquare. This is done by first determ

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5. There is a helpful shortcut for calculating the probability of genotypes resulting from a dihybrid cross (or any cross considering two or more pairs of alleles) that does not require drawing a very large Punnett square. This is done by first determining the probabilities of each trait alone (using a monohybrid cross) and then using the multiplication rule to combine the probabilities of all the genotypes being considered. Using our TtYy plants above, we would first assign each set of alleles to its own Punnett square as follows: t Y y T TT Tt Y YY Yy t Tt tt y Yy yy a. Based on the Punnett squares above, what is the probability of being genotype tt in this cross? b. Based on the Punnett squares above, what is the probability of being genotype YY in this cross? c. Using the probabilities that you just calculated for the genotypes tt and YY, what is the probability of one offspring being both genotype tt and YY in this cross (use the multiplication rule)? d. What is the probability of an offspring of genotype TTYY? e. What is the probability of an offspring of genotype ttyy? f. What is the probability of an offspring of genotype TtYy?

5. There is a helpful shortcut for calculating the probability of genotypes resulting from a dihybrid cross (or any cross considering two or more pairs of alleles) that does not require drawing a very large Punnett square. This is done by first determining the probabilities of each trait alone (using a monohybrid cross) and then using the multiplication rule to combine the probabilities of all the genotypes being considered. Using our TtYy plants above, we would first assign each set of alleles to its own Punnett square as follows: t Y y T TT Tt Y YY Yy t Tt tt y Yy yy a. Based on the Punnett squares above, what is the probability of being genotype tt in this cross? b. Based on the Punnett squares above, what is the probability of being genotype YY in this cross? c. Using the probabilities that you just calculated for the genotypes tt and YY, what is the probability of one offspring being both genotype tt and YY in this cross (use the multiplication rule)? d. What is the probability of an offspring of genotype TTYY? e. What is the probability of an offspring of genotype ttyy? f. What is the probability of an offspring of genotype TtYy?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 6TYK

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