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- F2 Cross: Tall, White, Axial x Dwarf, Violet, Terminal DdwwAA x ddWWaa Character: Stem height, Flower color & position Use fork-line method to check the possible offspring. Show and interpret all the possible genotypes and phenotypes of the offsprings.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.What is the genotypic ratio
- 9. In con, normal kernel are dominant to waxy kernels. If you crossed a waxy kernel plant to a heterozygous normal plant what type of seeds would be produced? Normal kernels (N), waxy kernel (n) Genotype: Nn, nn Phenotype: Normal kernels and waxy kernels Genotypic Ratio: 1:1 Phenotypic Ratio: 1:12. Show a dihybrid cross of a plant with a genotype of heterozygous green leaf and heterozygous smooth leaf blade and another plant with a genotype of homozygous green leaf and homozygous serrated leaf blade. Consider green (WW) is dominant over white (ww) while smooth (SS) is dominant over serrated (ss). What are the possible offspring from this cross? Give the phenotype, genotype and their ratio. Make sure the phenotype and genotype were aligned with its ratio.ibri 12 BIU A - A 4. 11. Mendel crossed peas having round seeds and yellow cotyledons with peas having wrinkled seeds and green cotyledons. All the F1 plants had round seeds with yellow cotyledons. a. What are the genotypes of the parent plants? b. What gametes could be produced by the parent with round seeds and yellow cotyledons? C. What gametes could be produced by the parent with wrinkled seeds and green cotyledons? d. What is the genotype of the F1 plants? e. What gametes could be produced by the F1 plants? hp
- Two pairs of traits are segregating in a cross. Two parents produce 156 progeny that fall into 4 phenotypes. The numbers of offspring in the 4 phenotypes are 89, 31, 28, and 8. What are the genotypes of the two parents?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.…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
- 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 1. identify the genotypes of the parents 2. Complete the Punnett square. 3. What are the possible genotypes of the offspring.1. A farmer crossed a round-shaped (T) and yellow-colored (Y) seed plant carrying yellow seeds (Y) and a wrinkled (t) and green-colored (g) seed plant. The traits of first plant is dominant over the second one. Fertilization of the first generation plants produced a total of 16 offsprings of the plants. What will be the genotypes and phenotypes of the offsprings. (Use punnette square to answer the question) Heterozygous lines for this cross Also, list up the Homozygous and1. 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?