2. In peas, seeds may have seeds that are yellow (Y) or green (y), and the stem length may result in a tall (T) or short (t) What proportion of the plants from the following crosses would be tall with yellow seeds? a. ITyy x ttYY b. TIYY x TIYY c. ttYy x ttyy

2. In peas, seeds may have seeds that are yellow (Y) or green (y), and the stem length may result in a tall (T) or short (t) What proportion of the plants from the following crosses would be tall with yellow seeds? a. ITyy x ttYY b. TIYY x TIYY c. ttYy x ttyy

Name: 2. In peas, seeds may have seeds that are yellow (Y) or green (y), an
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Description: 2. In peas, seeds may have seeds that are yellow (Y) or green (y), and the stem length may result in a tall (T)or short (t)What proportion of the plants from the following crosses would be tall with yellow seeds?a. TTyy x ttYYb. TIYY x TIYYc. ttYy x

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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Imagine you are performing a cross involving seed color in garden pea plants. What Fi offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green. 100 percent yellow-green seeds 100 percent yellow seeds 50 percent yellow, 50 percent green seeds 25 percent green, 75 percent yellow seeds
In peas, the allele Le produces tall plants and the allele le produces dwarf plants. The Le allele is dominant to le. If a tall plant is crossed with a dwarf, the offspring are distributed about equally between tall and dwarf plants. What are the genotypes of the parents?
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?
5. You are handed a mystery pea plant with tall stems and axial flowers and asked to determine its genotype as quickly as possible. You know that the allele for tall stems (T) i dominant to that of the dwarf stems (t) and that allele for axial flowers (A) is dominant to that for terminal flowers (a). (a) What are all the possible genotypes of your mystery plant? (b) Describe the one cross you would do, out of your gardens, to determine the exact genotype of your mystery plant. (c ) While waiting for the results of your cross, you predict the result of each possible genotype listed in part a. How do you do this? Why is this not called "performing a cross"? (d) Explain how the results of your cross and your predictions will help you learn the genotype of your mystery plant.
1. If a purebred pea plant with purple flowers was crossed with a purebred pea plant with white flowers, all of the offspring's flowers ended up being purple. In this instancethe WHITE flower trait is considered to be what?
5. In garden peas, green pod (P) is dominant to yellow pod (p) and tall stemmed (T) plants are dominant to short stemmed plants (t). Please give the genotypic and phenotypic ratios from the following crosses. a) Homozygous green pod homozygous tall stemmed plant crossed with a yellow pod (homozygous) short stemmed (homozygous) plant. b) Homozygous green pod homozygous tall stemmed plant crossed with a heterozygous green pod heterozygous tall stemmed plant. c) Heterozygous green pod heterozygous tall stemmed plant crossed with a heterozygous green pod heterozygous tall stemmed plant. d) Heterozygous green pod homozygous tall stemmed plant crossed with a yellow pod (homozygous) homozygous tall stemmed plant. These are dihybrid crosses. 7. In pea plants, flower colour and pollen shape are located on the same chromosome. A plant with purple flowers and long pollen (AaBb) is crossed with one that is recessive for both traits (aabb). Calculate the…
1. In pea plants, purple flower color is dominant over white flower color. If you had a purple flowered plant, its genotype could be either PP or _______? A. Pp B. pp C. PP 2. To figure out which genotype your purple plant had, you could do a test cross and mate it with a __________ plant? A. White Flower B. Purple Flower 3. If any of the offspring were white, that would tell you that your mystery purple plant had the genotype __________? A. Pp B. PP C. pp
2) Suppose you have two rose bushes, both with orange flowers. You cross the two plants and are surprised to find that, while most of the resulting plants have orange flowers, some are red and some are yellow. You decide that you like the red flowers best and would like to make more. a. What cross (two colored plants) would you perform to produce the most red plants. b. Your mother decides she would like some of the orange roses. Which cross (two colored plants) would give you the most orange plants?
6. A heterozygous purple plant is crossed with a white plant. A. Write the genotype of the purple and white plants. B. Write the gametes formed by the purple plant and proportions in which they occur. C. Write the gametes formed by the white plant and proportions in which they occur. D. Combine the gametes using a Punnett square. E. Write the genotypes of the offspring and the ratio in which they occur. F. Write the phenotypes of the offspring and the ratio in which they occur.
1, Which of the following is an example of a parental cross in Mendelian Genetics. DD x Dd DD x dd dd x dd Dd x dd Any of the above 2, In many species of flowering plants, the gene(s) responsible for flower color are incompletely dominant. A cross of a red rose and a blue rose will create what color(s) of flowers? Red Blue Both red and blue Purple Red, blue and purple
1. What are some possible applications of genetics to plant breeding? 2. Where are genes found? CHOICES : A. CELL B. DNA C. LOCUS D. MITOCHONDRIA 3. Y. The grandfather has hairy-eared son. His son married a girl who gave birth to a boy. What are the chances that his grandson would be hairy eared too? CHOICES: A. 0% B. 25% C. 50% D. 100% Z. Why do you think so? CHOICES: A. Only male is the carrier of the disorder. B. Only female is the carrier of the disorder. C. Both male and female is the carrier of the disorder. D. Neither male nor female is the carrier of the disorder.
1. A gardener finds that some bean plants have pubescent leaves and others have glabrous leaves. a. Based on the results of the following crosses below, which trait is dominant, pubescent or glabrous? Which of the following crosses helped you determine the answer? b. Based on your answer in 1.a, determine the genotypes of the parents of each cross.