Q5. When Mendel crossed a large number of tall pea plants with short pea plants, all F1 plants were tall. The F2 generation was created by self-pollinating the F1 plants. (a) Complete a genetic cross of F1 to show the genotypes and phenotypes of the parents and offspring. (b) Complete a genetic cross of F2 to show the genotypes and phenotypes of the offspring. (c) State the ratio of phenotypes expected in the F2 offspring.

Q5. When Mendel crossed a large number of tall pea plants with short pea plants, all F1 plants were tall. The F2 generation was created by self-pollinating the F1 plants. (a) Complete a genetic cross of F1 to show the genotypes and phenotypes of the parents and offspring. (b) Complete a genetic cross of F2 to show the genotypes and phenotypes of the offspring. (c) State the ratio of phenotypes expected in the F2 offspring.

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Description: Q5. When Mendel crossed a large number of tall pea plants with short pea plants, all F1 plantswere tall. The F2 generation was created by self-pollinating the F1 plants.(a) Complete a genetic cross of F1 to show the genotypes and phenotypes of the p

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 8RQ: Consider a cross to investigate the pea pod texture trait, involving constricted or inflated pods....

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Consider a cross to investigate the pea pod texture trait, involving constricted or inflated pods. Mendel found that the traits behave according to a dominant/ recessive pattern in which inflated pods were dominant. If you performed this cross and obtained 650 inflated-pod plants in the F2 generation, approximately how many constricted-pod plants would you expect to have? 600 165 217 468
Mendel performs a cross using a true-breeding pea plant with round, yellow seeds and a true- breeding pea plant with green, wrinkled seeds. What is the probability that offspring will have green, round seeds? Calculate the probability for the F1 and F2 generations.
Imagine you are performing a cross involving seed color in garden pea plants. What Fi offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green. 100 percent yellow-green seeds 100 percent yellow seeds 50 percent yellow, 50 percent green seeds 25 percent green, 75 percent yellow seeds
Use a Punnett square to predict the offspring in a cross between a dwarf pea plant (homozygous recessive) and a tall pea plant (heterozygous). What is the phenotypic ratio of the offspring?
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2 Considering the Mendelian traits round versus wrinkled and yellow versus green, consider the crosses below and determine the genotypes of the parental plants by analyzing the phenotypes of their offspring. Parental Plants Offspring (a) round, yellow * round, yellow 3/4 round, yellow 1/4 wrinkled, yellow (b) wrinkled, yellow * round, yellow 6/16 wrinkled, yellow 2/16 wrinkled, green 6/16 round, yellow 2/16 round, green (c) round, yellow * round, yellow 9/16 round, yellow 3/16 round, green 3/16 wrinkled, yellow 1/16 wrinkled, green (d) round, yellow * wrinkled, green 1/4 round, yellow 1/4 round, green 1/4 wrinkled, yellow 1/4 wrinkled, green
3. Imagine you have just purchased a black stallion ofunknown genotype. You mate him to a red mare, andshe delivers twin foals, one red and one black. Canyou tell from these results how color is inherited, assuming that alternative alleles of a single gene are involved? What crosses could you do to determine howcolor is inherited?
3)Mendel found that crossing wrinkle-seeded (rr) plants with homozygous round-seeded(RR) plants produced only round-seeded plants. What genotype ratio and phenotyperatio can be expected from a cross between a wrinkle-seeded plant and a heterozygousplant for this characteristic?
4. Snapdragon is a flowering plant that does not follow Mendelian rules of inheritance. If a homozygous dominant red snapdragon flower is crossed with the heterozygous pink flower, what are the F1 generation. Show the phenotype, genotype and their percentages.
8. Consider the following hypothetical cross: Tall, + tendrils X Short, - tendrils F1: Tall, + tendrils F1’s are backcrossed to recessive parent. 850 progeny produced: Tall, + tendrils 221; Tall, - tendrils 195; short, + tendrils 190, short, - tendrils 194. Explain pattern of inheritance.
4. In dogs , curly hair is dominant to straight hair , and spotted coats are dominant to solid coats . If one dog has straight hair and is heterozygous for spotted coat is crossed with a dog that is heterozygous for both curly and spotted coat , determine the probability that the two dogs will have a puppy with curly hair and solid coat ?