Answered: 1. In a test cross, a homozygous…

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 7RQ: Imagine you are performing a cross involving seed color in garden pea plants. What Fi offspring...

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1. In a test cross, a homozygous recessive parent (mm) and a homozygous dominant parent (MM) are crossed. What is the genotypic probability of the offspring? * a. 100% Mm b. 100% mm c. 50% Mm and 50% mm d. 75% Mm and 25% mm e. 50% dominant and 50% recessive f. 100% dominant 2. After performing an experiment on monohybrid cross about the shape of the pea seeds, data were obtained from the result. There are 87 wrinkled pea seeds and 313 round seeds. Of course, round seed is dominant over wrinkled seed. What is the expected value or ratio for the wrinkled seed? * a. 21.75 b. 65.25 c. 100 d. 300 e. 400 f. None of the choices 3.After performing an experiment on monohybrid cross about the shape of the pea seeds, data were obtained from the result. There are 87 wrinkled pea seeds and 313 round seeds. Of course, round seed is dominant over wrinkled seed. What will be the computed chi-square value? * a. 9.75 b. 5.25 c. 4.75 d. 3.00 e. 2.26 f. 2.25 g. 1.69 h. 0.56 i. None of the choices 4. After performing an experiment on monohybrid cross about the shape of the pea seeds, data were obtained from the result. There are 87 wrinkled pea seeds and 313 round seeds. Of course, round seed is dominant over wrinkled seed. What will be the probability of the computed chi-square value based on the given chi-square table found in the notes the teacher provided? * a. 0.016 b. 2.706 c. It would be lesser than 0.10. d. It would be greater than 0.90. e. It would be lesser than 0.10 but greater than 0.90. f. It would be greater than 0.10 but lesser than 0.90. g. Between 0.10 and 0.05 h. None of the choices 5. After performing an experiment on monohybrid cross about the shape of the pea seeds, data were obtained from the result. There are 87 wrinkled pea seeds and 313 round seeds. Of course, round seed is dominant over wrinkled seed. What can we conclude after performing the chi-square test? The following statements are given: (#1. There is no agreement between the expected and observed ratios.) (#2.The probability of the chi-square value is greater than 0.5.) (#3. The probability of the chi-square value is lesser than 0.05.) (#4.The chi-square value is lesser than 3.841.5.) (#5. The chi-square value is greater than 3.841.) (#6. The data fit the 3:1 ratio.) (#7. The data doesn’t fit the 3:1 ratio.) * a. 1, 2, 4, 7 b. 1, 3, 5, 6 c. 1, 2, 4, 6 d. 2, 4,7 e. 2, 4, 6 f. 1,2, 5, 7 g. None of the choices 6. After performing an experiment on monohybrid cross about the shape of the pea seeds, data were obtained from the result. There are 87 wrinkled pea seeds and 313 round seeds. Of course, round seed is dominant over wrinkled seed. After performing the chi-square test, what could be the reason for such result? * a. The result is caused by external factors such as the temperature or the soil where the pea seeds were being planted. b. The result is caused by chance. c. The result is caused by external factors and chance. d. either a or b

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