8. In peas, tall plants (T) are dominant over short plants (t). In the P generation, a plant homozygous for tall height is crossed with a short plant. The resulting Fl plants are crossed. The plant heights of the observed F2 generation were: (Show all work) Tall: 5474 Short: 1850 NULL: There is no statistically significant difference between the observed results and the expected results. Does the data fit the predicted phenotypic ratio?

8. In peas, tall plants (T) are dominant over short plants (t). In the P generation, a plant homozygous for tall height is crossed with a short plant. The resulting Fl plants are crossed. The plant heights of the observed F2 generation were: (Show all work) Tall: 5474 Short: 1850 NULL: There is no statistically significant difference between the observed results and the expected results. Does the data fit the predicted phenotypic ratio?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 21RQ: Which of the following situations does not follow the Law of Independent Assortment? A blond man and...

See similar textbooks

Similar questions

1. Is the removal of large portions of the bark of trees known for their medicinal value beneficial or harmful to the tree? Why? 2. Translocation of sugar in seedling- How come 100% of cotyledons removed from the mung bean plant is higher compared to the 50% cotyledons removed? and How come when 50% cotyledons are removed from the mung bean plant, it is higher compared to the control (no cotyledons removed)?
F1 hybrids between two species of cotton, Gossypium barbadenseand Gossypium hirsutum, are very vigorous plants. However, F1crosses produce many seeds that do not germinate and a high percentageof very weak F2 offspring. Suggest two reasons for theseobservations.
Problem: A homozygous tall, homozygous white flower plant crosses with a homozygous short, homozygous purple flower plant. We know that the purple and tall flowers are the dominant traits. Show your work. What are the phenotypes of the offspring?
Problem: A homozygous tall, homozygous white flower plant crosses with a homozygous short, homozygous purple flower plant. We know that the purple and tall flowers are the dominant traits. Show your work. 1. What are the genotypes of the offspring? Why? 2. What are the genotypes of the offspring? Why?
Genetic variation is indispensable for crop improvement. Discuss how heritable variation can be generated in crop plants?
# of Green Leaves _________111______________ # of White Leaves ___________35______________ Using the Chi-square test determine if the plants fit the expected 3:1 ratio. Show all calculations and state the p value you obtain for each cross and what the p values indicate about your results.
3. The inheritance of petal color in some plant species is alleged to be codominant. A group of pure (homozygous) white carnations were deliberately pollinated with pollen from pure red carnations. Fertilized seeds were collected, and after germination and growth of this F1 generation, they were allowed to freely pollinate one another. The color of the flower on each plant in the F2 generation was tallied. 239 red, 307 white, and 615 pink plants were recorded. Apply a ?2 analysis to determine the statistical validity of the assumed inheritance pattern. Show every step in your thought process along with all relevant calculations and written support. HINT: For this problem, you should DEFINITELY construct the two Punnett squares to reveal the phenotypes of the F1 and F2 generations. Please answer very soon will give rating surely
Drought is one of the major problems which cause serious yield reduction in wheat crop. How QTL mapping could help to improve the yield related attributes in wheat. Explain the best morphological, biochemical and molecular markers and mechanism involved in QTL breeding
Question:- For a simple cross between a purple-flowered plant and a white-flowered plant, where purple is dominant over white. a. Show the F2 in a Punnett square. What are the proportions of genotypes and phenotypes? Express as fractions, decimal fractions and ratios. b. Now imagine that half of the pollen carrying the recessive allele die before reaching their target, while those carrying the dominant allele are unaffected; what are the proportions of genotypes and phenotypes now?What does this tell you about Mendel’s principle of segregation?
Roughly 30% of harvested cantaloupesare wasted because they become overripebefore reaching consumers. Agricultural scientistshave used genetic engineering to insert an applegene into the cantaloupe genome to produce atransgenic (GM) cantaloupe that ripens more slowlyafter harvesting. Is this approach less desirablethan the marker-assisted breeding describedabove? Why or why not?
Many beautiful varieties of roses have been produced, particularlyin the last few decades. These newer varieties often have verystriking and showy flowers, making them desirable as horticulturalspecimens. However, breeders and novices alike have noticed thatsome of these newer varieties are not very fragrant compared withthe older, more traditional varieties. From a genetic point of view,suggest an explanation why some of these newer varieties withsuperb flowers are not as fragrant.
Miracle RiceRice is a staple food in Asia. In the 1950s, Asia faced food shortages and an impending famine. If you have relatives that lived in Asia during the ’50s and ’60s, they may tell you that due to the rice shortage, many starved and those who were lucky had to supplement their diet with other crops, such as barley. In 1962, an organization focused on research and development of rice called the International Rice Research Institute (IRRI) developed a high-yielding variety of rice by crossing the two types of rice from Indonesia and China. The result was groundbreaking. The new variety called IR8 (India Rice 8) increased its yield as much as 10 times the traditional variety of rice. By the early 1970s, many rice farmers in India, the Philippines, and Vietnam switched to cultivating IR8 rice, making these countries into major rice exporters, preventing a mass famine in Asia, and saving millions of lives. Although IR8 was widely cultivated in Asia in the ’70s, it is no longer…