1. A TT (tall) pea plant is crossed with a tt (short) plant. Show steps in the table What percentage of the offspring will be tall? _____________% 2. A Tt pea plant is crossed with a Tt pea plant. Show steps in the table What percentage of the offspring will be short? _____________% 3. A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR). Show steps in the table What percentage of the offspring will be homozygous (RR)? _____________%

1. A TT (tall) pea plant is crossed with a tt (short) plant. Show steps in the table What percentage of the offspring will be tall? _______% 2. A Tt pea plant is crossed with a Tt pea plant. Show steps in the table What percentage of the offspring will be short? _% 3. A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR). Show steps in the table What percentage of the offspring will be homozygous (RR)? _______%

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 5RQ: Imagine that you are performing a cross involving seed texture in garden pea plants. You cross...

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a. 1 dominant allele will contribute 120/10 = 12 cm to the base height of the plant.b. The height of the parent plant 1 Genotype of the parent plant 1 – D1D1D2D2D3D3d4d4d5d5 The height of the parent plant 2 Genotype of the parent plant 2 – d1d1d2d2d3d3D4D4D5D5Contributing alleles – D4D4D5D5. The height of the plant without any contributing alleles would be 80 cm. The plant with genotype d1d1d2d2d3d3D4D4D5D5 has 4 contributing allele each of which contributes 12 cm to the base. Hence, the height of the plant with genotype d1d1d2d2d3d3D4D4D5D5 would be 80 + 12 + 12 + 12 + 12 = 128 cm. c. Parents – D1D1D2D2D3D3d4d4d5d5 × d1d1d2d2d3d3D4D4D5D5 Gametes – D1D2D3d4d5 × d1d2d3D4D5 F1 generation – D1d1D2d2D3d3D4d4D5d5 The height of the plants of F1 generation = 80 + 12 + 12 + 12 + 12 + 12 = 140 cm Hence, Genotype of the F1 = D1d1D2d2D3d3D4d4D5d5 Phenotype of…
Here are some descriptions and symbols that provide genetic information about pea plant 1. different form of each gene 2. RR , Rr 3. To’ tt 4. white flower colour Match the description above with each item below. Genotype ____ Phenotype ____ Allele ____ Monohybrid cross. ____
Tall is dominant to short and green pods are dominant to yellow pods. If you cross plants with the genotypes TtGg and TtGg, what fraction of the offspring will be tall with green pods? O 3/16 O 6/16 O 9/16 O 1/16 PRINECOMAS I.pptx PRINECOMA3 ..pptx MacBook Air 888 F2 F3 %23 2$ & 4. 6. T Y G H. K C. V comm V D.
1. Use the following information to answer the question: Parental cross is RrYy x RrYy Seed Shapes are R-round, r-wrinkled Seed colors are Y-yellow, y-green Based on the information given, what is the phenotype ratio of the offspring of this cross? 2. A pea plant heterozygous for height and seed color (TtYy) is crossed with a pea plant heterozygous for height but homozygous recessive for seed color (Ttyy). If 80 offspring are produced, how many are expected to be tall and have yellow seeds? 3. What is the chromosome theory of inheritance? How does this theory explain Mendel's results? 4. A cross between two organisms heterozygous for two different genes (AaBb) results in a 9:3:3:1 phenotype ratio among the offspring. Is the offspring's genotype ratio the same? Explain your answer.…
In four o'clocks, flower color is due to incomplete dominance. Some flowers are red (RR), some are white (R'R'), and others are pink (RR'). Cross a red flower with a pink flower. 3. What is the genotype Genotypes Phenotypes of the red flower? What is the genotype of the pink flower? What is the probability of getting red offspring? What is the probability of getting white offspring? What is the probability of getting pink offspring?
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.
In pea plants, the tall trait is dominant and the recessive trait is short. What is the GENOTYPE ratio of the following offspring? * T TT Tt Tt tt O 3 Tall: 1 Short 3 TT: 1 tt 3 Short: 1 Tall O 1 TT: 2 Tt: 1 t
1. Complete the Punnett square for a cross between a homozygous red-flowered snapdragon (RR) and a homozygous white-flowered snapdragon (WW). Give the ratio for the phenotype and the genotype. Key F1 Genotypic Ratio: RR – red Phenotypic Ratio: wW- white RW- pink 2. Complete the Punnett Square for a cross between two Fi plants (WW). Give the phenotypic ratio for the F2 generation. F2 Phenotypic ratio: 3. Cite some possible applications of genetics to plant breeding.
A white-flowered plant is crossed with a pink-flowered plant. All of the F1 offspring from the cross are white. 4. Which phenotype is dominant? 5. What are the genotypes of the original parent plants? 6. What is the genotype of all the F1 offspring? 7. What would be the percentages of genotypes & phenotypes if one of the white F1 plants is crossed with a pink-flowered plant? 8. Which of Mendel's Laws is/are illustrated in this question? 9. Which cross would produce phenotypic ratios that would illustrate the Law of Dominance? C. Tt x Tt A. TT x tt B. TT x Tt D. tt x tt 10. Mendel formulated his Law of Segregation after he had: C. produced mutations D. produced hybrids A. studied F1 offspring B. studied F2 offspring
In a particular plant, long stem is dominant over short stem. This same plant may produce red flowers or white flowers with this trait showing nondominance. Cross a heterozygous long stemmed pink plant with a heterozygous long stemmed red flowering plant. 10. Genotype of the heterozygous long-stemmed pink Genotype of the heterozygous long-stemmed red Genotypes Phenotypes Created hv Amy Brown Science
Using the following information perform following crosses using the forked line and predict all possible phenotypes types of the offspring. List the number and description of the phenotypes of the offspring. 1. aa BB Cc Dd Ee X aa bb Cc Dd EE 2. Ff Rr Gg dd Bb X Ff RR Gg Dd Bb 3. Dd gg JJ bb Hh Ee X DD GG Jj Bb Hh Ee
T = Tall t = short pollen from a tall pea plant T T eggs from a tall pea plant T TT TT t Tt Tt In the square shown, which of the following is true about the offspring resulting from the cross? Multiple Choice a. Half are expected to be short. b. All are expected to be tall. c. All are expected to be short. d. All are expected to be of medium height.