Can you explain? 3. One of the pea-plant crosses carried out by Mendel is shown below. The character under study is flower colorand each parent is derived from a pure-bred line.P: Purple x WhiteF;: 100% PurpleF2: offspring of F, plants allowed to self-fertilize, 700 plants with purple flowers, 206 plants with white flowersIdentify the genotypes of each generation.

Mendel's inheritance is based on two allelic forms of a gene that regulates one type of trait. One…

3. One of the pea-plant crosses carried out by Mendel is shown below. The character under study is flower color and each parent is derived from a pure-bred line. P: Purple x White F1: 100% Purple F2: offspring of F, plants allowed to self-fertilize, 700 plants with purple flowers, 206 plants with white flowers Identify the genotypes of each generation.

3. One of the pea-plant crosses carried out by Mendel is shown below. The character under study is flower color and each parent is derived from a pure-bred line. P: Purple x White F1: 100% Purple F2: offspring of F, plants allowed to self-fertilize, 700 plants with purple flowers, 206 plants with white flowers Identify the genotypes of each generation.

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

Section12.1: The Beginnings Of Genetics: Mendel’s Garden Peas

Problem 1SB: Two pairs of traits are segregating in a cross. Two parents produce 156 progeny that fall into 4...

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Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares would you need to complete a Punnett square analysis of this cross?
Figure 12.16 In pea plants, purple flowers (P) are dominant to white flowers (p) and yellow peas (Y) are dominant to green peas (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares do you need to do a Punnett square analysis of this cross?
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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.
1. The gene for tall is dominant over dwarf in the garden pea plant used by Mendel. A pea plant that comes from a line of plants that are all tall is crossed with a dwarf pea plant. What is the phenotype of the Fi generation? What is (are) its genotype(s)? Character/s: Alleles: a Genotype: 9 Genotype: Cross: Genotype/s: Phenotype/s: Genotypic Ratio: Activate V Go to Setting Phenotypic Ratio:
1. The petals of the blue-eyed Mary (Collinsia parviflora) are normally blue. There are color variants of white and pink. Two pure breeding lines, one with pink petals and another with white petals were collected and the following crosses were made, with results shown in the table below: parents F1 F2 blue x white blue 101 blue, 33 white blue x pink blue 192 blue, 63 pink pink x white blue 272 blue, 121 white, 89 pink A. Define the allele symbols that can be used and show the genotype of parents, F1 and F2. B. A cross between a certain blue F2 plant and a certain white F2 plant gave progeny of which 3/8 were blue, 1/8 were pink, and ½ were white. What must the genotypes of these two F2 plants have been?
1. P is a dominant allele for purple flowers and p is the recessive allele that causes white flowers. The following cross is performed: Pp x pp. What percentage of offspring would you expect to have white flowers? 2. In peas, T (tall) is dominant to t (dwarf). A homozygous dominant plant is crossed to a heterozygous plant. What is the expected outcome for the genotype ratio of offspring from this cross? What percentage of offspring would you expect to be tall? 3. In peas, Y (yellow seeds) is dominant to y (green seeds) and R (round seeds) is dominant to r (wrinkled seeds). The following cross is performed: YYRr x yyrr. What is the expected phenotype ratio of the offspring?
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.…
4. What are the possible phenotypes and genotypes of the F1 generation if the P generation consisted of the following cross: a plant that is homozygous dominant for flower color and homozygous dominant for pod color was crossed with a plant that is heterozygous for flower color and homozygous dominant for pod color? Dominant for flower color – P (purple) Recessive for flower color = p (white) Dominant for pod color =G (green) Recessive for pod color = g (yellow) %3D P1: PP X GG Рр X GG PG PG PG PG PG PPGG PPGG PPGG PPGG PG PPGG PPGG PPGG PPGG PPGG PPGG Pp pG PPGG PpGG PPGG PpGG Genotypes: Phenotypes: Genotypic Ratio: Phenotypic 田
3. Mendel crossed that was homozygous dominant for flower color and heterozygous for height with a plant that was heterozygous for flower color and homozygous recessive for height. Do a punnet square and calculate possible genotypes and phenotypes of this cross. Dominant for flower color = P (purple) Recessive for flower color = p (white) Dominant for height = T (tall) Recessive for height =t (short) %3D P1: PP X Tt Pp X tt PT Pt PT Pt Pt PPTT PPtt PPTT PPtt Pt PPTT PPtt PPTt PPtt pt PpTt Pptt PpTt Pptt pt PpIt Pptt PpTt Genotypes: Phenotypes: Genotypic Ratio: Phenotypic:
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