3. Dihybrid cross In peas, yellow seed (Y) is dominant over green seed (y). Round seed coat (R) is dominant over wrinkled seed coat (r). Complete the following: A. Two individuals that are heterozygous for both seed color and seed coat are crossed with each other. This is YyRr X Yy Rr. What are the resultant genotypes and phenotypes? 4. Dihybrid cross In hemp, low THC content (c) is recessive compared to high THC content (C) which is dominant. High yield (above average) in bud size (B) is dominant over low yield (below average) in bud size (b). Complete the following: A hemp variety that is heterozygous for THC content and homozygous for high yielding bud size is crossed with a variety that is homozygous for small bud size and homozygous for low THC content. A. Write the genotype for the varieties described above and show the cross in the table below

3. Dihybrid cross In peas, yellow seed (Y) is dominant over green seed (y). Round seed coat (R) is dominant over wrinkled seed coat (r). Complete the following: A. Two individuals that are heterozygous for both seed color and seed coat are crossed with each other. This is YyRr X Yy Rr. What are the resultant genotypes and phenotypes? 4. Dihybrid cross In hemp, low THC content (c) is recessive compared to high THC content (C) which is dominant. High yield (above average) in bud size (B) is dominant over low yield (below average) in bud size (b). Complete the following: A hemp variety that is heterozygous for THC content and homozygous for high yielding bud size is crossed with a variety that is homozygous for small bud size and homozygous for low THC content. A. Write the genotype for the varieties described above and show the cross in the table below

Name: Please show all steps and work What are the resultant genotypes and ph
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Description: Please show all steps and work What are the resultant genotypes and phenotypes?Genotypes:Phenotypes:Which genotype would you select and use for further back crosses to get your desired goal of highyielding buds with low THC? Why? 3. Dihybrid crossIn

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

Section: Chapter Questions

Problem 1TYK: The dominant C allele of a gene that controls color in corn produces kernels with color; plants...

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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?
The dominant C allele of a gene that controls color in corn produces kernels with color; plants homozygous for a recessive c allele of this gene have colorless or white kernels. What kinds of gametes, and in what proportions, would be produced by the plants in the following crosses? What seed color, and in what proportions, would be expected in the offspring of the crosses? a. CCCc b. Cccc c. CcCc
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?
3.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? TtRr What is the genotype of the homozygous short white flowered plant? ttrr Fill in the genotype in the parentheses and FOIL each parent’s genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant (
3.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? What is the genotype of the homozygous short white flowered plant? Fill in the genotype in the parentheses and FOIL each parent’s genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant ( How many of the 16 offspring are: tall & red tall & white short & red short & white
3.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? What is the genotype of the homozygous short white flowered plant? Fill in the genotype in the parentheses and FOIL each parent's genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant (
1. The allele G for yellow stigma is completely dominant to green (g). Supposingtwo strains of autotetraploid plants are available and their genotypes are as follows:GGgg – in this plant the gene is close to the centromereGggg – in this plant the gene is far from the centromere If these two plants are crossed:a) provide the gametes that can be obtained from the two plants;b) provide the genotypic and phenotypic ratios of the offspring. 2. Consider the illustration below. Diagram the configuration you would observe at Anaphase I if crossing-over happens within the inversion. (IMAGE ATTACHED)
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. 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. If you allow the original unknown plant to self-fertilize, what is the probability of recovering offspring with wrinkled, green OR round, yellow peas? Complete the following steps to answer the question: a. What is the cross? (Write out the genotypes being crossed, based on your answer to 3c.) b. What are the target genotypes? (Use the Y_ and R_ notation). c. Break it down into single gene crosses: i. At the R locus only, what ratio of round:wrinkled do you expect from the cross? ii. At the Y locus only, what ratio of yellow:green do you expect from the cross? d. What is the total probability of getting offspring with wrinkled, green OR round, yellow peas? Use the multiplication and addition rules and show your work!
2. Figure 8.10 In pea plants, round seed shape (R) is dominant to wrinkled seed shape (r) and yellow peas (Y) are dominant to green peas (y). What are the possible genotypes and phenotypes for a cross between RrYY and rrYy pea plants? How many squares do you need to do a Punnett square analysis of this cross?
4. In pea plants, tall (T) plants are dominant to short (t), and green pods (G) are dominant to yellow (g). Perform a Punnett square analysis for the following crosses, with the parental gametes and all possible offspring genotypes that could be produced. **Include the phenotypic ratios for the offspring. (a) TtGG × TTgg