1. Set up a Punnett square using the following information: Dominate allele for tall plants =D Recessive allele for dwarf plants = d Dominate allele for purple flowers = W Recessive allele for white flowers = w Cross a homozygous dominant parent with a homozygous recessive parent. Using the Punnett square above: a. What is the probability of producing tall plants with purple flowers? Possible genotype(s)? b. What is the probability of producing dwarf plants with white flowers? Possible genotype(s)? c.What is the probability of producing tall plants with white flowers? Possible genotype(s)? d. What is the probability of producing dwarf plants with purple flowers? Possible genotype(s)?

1. Set up a Punnett square using the following information: Dominate allele for tall plants =D Recessive allele for dwarf plants = d Dominate allele for purple flowers = W Recessive allele for white flowers = w Cross a homozygous dominant parent with a homozygous recessive parent. Using the Punnett square above: a. What is the probability of producing tall plants with purple flowers? Possible genotype(s)? b. What is the probability of producing dwarf plants with white flowers? Possible genotype(s)? c.What is the probability of producing tall plants with white flowers? Possible genotype(s)? d. What is the probability of producing dwarf plants with purple flowers? Possible genotype(s)?

Name: Name:Per:Date:Dihybrid Cross Practice Problems1. Set up a Punnett squ
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Description: Name:Per:Date:Dihybrid Cross Practice Problems1. Set up a Punnett square using the following information:Dominate allele for tall plants =DRecessive allele for dwarf plants = dDominate allele for purple flowers = WRecessive allele for white flowers

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter13: Observing Patterns In Inherited Traits

Section: Chapter Questions

Problem 7GP: Several alleles affect traits of roses, such as plant form and bud shape. Alleles of one gene govern...

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a. What type of trait is this? How many genes and alleles are involved? Explain your answer. b. What are the genotypes of the 90 and 100 cm plants respectively in the parental generation? c. What is the possible genotype, or genotypes, of the 95 cm class in the F2? c. What is the possible genotype, or genotypes, of the 95 cm class in the F2?
TOPIC: GENE INTERACTION AND EPISTASIS Two pure-breeding (homozygous) lines of shrubs were crossed as follows: P1 phenotype red leaves X green leaves P1 genotype ___________ _____________ F1 phenotype 100% green leaves with white flecks F1 genotype ___________ Crossing the F1s produced: F2 phenotypes F2 genotypes 123 green leaves w/ white flecks ____ 44 green leaves ____ 63 red leaves ____
What are the possible genotype and phenotype of offspring witha parent of two heterozygous tall pea plant? Legend: T- tall pea plant t- short pea plant 1. identify the genotypes of the parents 2. Complete the punnett square 3. What are the possible genotypes of the offspring? 4. What is the genotypic ratio? 5. What are the possible phenotypes of the offspring? 6. What is the phenotypic ratio? 7. What is the probability of having short trait?
Based on these results, what are the phenotypes for Parent 1 (P1) and Parent 2 (P2)? Seed Type Initial Number of Seeds Number of Seedlings Seedlings Without Purple Pigment Seedlings With Purple Pigment Seedlings With Green Leaves Seedlings With Yellow-Green Leaves Recessive Trait Dominant Trait Dominant Trait Recessive Trait P1 10 10 10 0 10 0 P2 10 9 0 9 5 4 F1 10 10 3 7 3 0 F2 30 30 15 15 15 15
What are the possible genotype and phenotype of offspring if one pf the parent is heterozygous tall and the other parent is homozygous short Legend T- tall pea plant t- short pea plant Question 1. What is the genotypic ratio 2. What are the possible phenotypes of the offspring? 3. What is the phenotypic ratio 4. What is the percentage of having the tall trait.
A. Consider this cross before answering the following questions:A pea plant heterozygous for the first trait and recessive for the second trait is crossed with a pea plant heterozygous for the first trait and homozygous-dominant for the second trait. 1. If the first gene is demonstrating dominant epistasis to the second gene, what is the probability that the F1 progeny will expressa. the dominant feature for the second trait?b. the recessive feature for the second trait?c. Neither dominant nor recessive features for the second trait?
A. Consider this cross before answering the following questions:A pea plant heterozygous for the first trait and recessive for the second trait is crossed with a pea plant heterozygous for the first trait and homozygous-dominant for the second trait. 1. It there is incomplete dominance in the expression of the two traits, what is the probability that the F1 progeny will be a. expressing the dominant feature for the second trait?b. expressing the dominant feature for both traits?c. expressing the dominant feature for the first trait and recessive feature for the second?d. expressing recessive feature for the first trait?e. expressing recessive feature for both traits?
A. Consider this cross before answering the following questions: A pea plant heterozygous for the first trait and recessive for the second trait is crossed with a pea plant heterozygous for the first trait and homozygous-dominant for the second trait. 1. If there is complete dominance in the expression of the two traits, what is the probability that the F1 progeny will be a. heterozygous for the first trait? b. expressing the dominant feature of the first trait? c. heterozygous for both first and second traits? d. expressing recessive feature of the second trait? e. recessive for both traits 2. It there is incomplete dominance in the expression of the two traits, what is the probability that the F1 progeny will be a. expressing the dominant feature for the second trait? b. expressing the dominant feature for both traits? c. expressing the dominant feature for the first trait and recessive feature for the second? d. expressing recessive feature for the first trait? e.…
What are the phenotype ratios observed for F2? Seed Type Initial Number of Seeds Number of Seedlings Seedlings Without Purple Pigment Seedlings With Purple Pigment Seedlings With Green Leaves Seedlings With Yellow-Green Leaves Recessive Trait Dominant Trait Dominant Trait Recessive Trait P1 10 10 10 0 10 0 P2 10 9 0 9 5 4 F1 10 10 3 7 3 0 F2 30 30 15 15 15 15
Crossing Pea Plants: Mendels Study of Single Traits Stem length in pea plants is controlled by a single gene. Consider the cross of a true-breeding long-stemmed variety to a true-breeding short-stemmed variety in which long stems are completely dominant. a. If 120 F1 plants are examined, how many plants are expected to be long stemmed? Short stemmed? b. Assign genotypes to both P1 varieties and to all phenotypes listed in (a). c. A long-stemmed F1 plant is self-crossed. Of 300 F2 plants, how many should be long stemmed? Short stemmed? d. For the F2 plants mentioned in (c), what is the expected genotypic ratio?
Several alleles affect traits of roses, such as plant form and bud shape. Alleles of one gene govern whether a plant will be a climber (dominant) or shrubby (recessive). All F1 offspring from a cross between a true-breeding climber and a shrubby plant are climbers. If an F1 plant is crossed with a shrubby plant, about 50 percent of the offspring will be shrubby; 50 percent will be climbers. Using symbols A and a for the dominant and recessive alleles, make a Punnett- square diagram of the expected genotypes and phenotypes the cross between the F1 offspring and the shrubby plant.
Problem: A homozygous tall, homozygous white flower plant crosses with a homozygous short, homozygous purple flower plant. We know that the purple and tall flowers are the dominant traits. Show your work. What are the phenotypes of the offspring?