1. A) Suppose that you crossed purple corn vs yellow corn and you got an F2 generation consisting of 768 purple kernels, and 232 purple kernels. You think that this follows Mendel's Laws, but to confirm you decide to do a Chi Square test. Please state your hypotheses and complete the Chi square test table shown below 0 E (O-E) (O-E) 2 (O-E) 2/2 Σ Class 1 Class 2
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- The text outlines some of the problems Frederick William I encountered in his attempt to breed tall Potsdam Guards. a. Why were the results he obtained so different from those obtained by Mendel with short and tall pea plants? b. Why were most of the children shorter than their tall parents?Imagine that you are performing a cross involving seed texture in garden pea plants. You cross true-breeding round and wrinkled parents to obtain F1 offspring. Which of the following experimental results in terms of numbers of plants are closest to what you expect in the F2 progeny? a. 8lOroundseeds b. 8lOwrinkledseeds c. 405:395 round seeds:wrinkled seeds d. 610:190 round seeds:wrinkled seedsshown are the F2 results of two Mendel's monohybrid crosses. Mendel crossed 2 heterozygote parents. If he were to expect segregation to happen normally, do the results match his expectations? state a null hypothesis that you will test using chi-square analysis. Calculate the chi-square value and determine the p value for both crosses a. Full pods: 882; constricted pods: 299 (full pods are dominant over constricted) b. violet flowers: 705; white flowers: 500 (violet dominant over white)
- Mendel's second law states that alleles of different genes assort independently of each other during gamete formation. Does this law always hold true? If not, explain under what circumstances it does hold true and when or why it does not hold true. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 14px ... X? X2 次 TT 田田 ABC 区 - 器,田用日 田用因 Ť {} 田 !!!O e. 1/8 QUESTION 3 In Mendel's pea plants, round shape (R) is dominant to wrinkled shape (r), and yellow color (Y) is dominant to green color (y). The alleles for seed shape and seed color sort independently. In the parental generation, Mendel crossed a true-breeding round, yellow-seeded plant with a true-breeding wrinkled, green-seeded plant to create an F1 generation. He then crossed the F1 offspring to eachother. What type of cross is this considered? O Dihybrid cross Heterozygous cross Testcross Genetic cross O Monohybrid cross QUESTION 4 - Save and Submit to save and submit. Click Save All Answers to save all answers. 20 000 OOD F4 MacBook AirWork out the Chi-Squared Goodness of Fit for Mendel's actual data on stem length: "Expt. 7: Length of stem. –– Out of 1,064 plants, in 787 cases the stem was long, and in 277 short. Hence a mutual ratio of 2.84:1. In this experiment the dwarfed plants were carefully lifted and transferred to a special bed. This precaution was necessary, as otherwise they would have perished through being overgrown by their tall relatives. Even in their quite young state they can be easily picked out by their compact growth and thick dark–green foliage." F2: O E O-E (O-E)^2 (O-E)^2/E # short 277 266 11 121 0.455 # tall 787 798 -11 121 0.152 sums: 1,064 1064 0.607 degrees of freedom = 2-1=1 Chi-squared value = .607 p-value: 0.25 < p < 0.50 Work out the Chi-Squared Goodness of Fit for Mendel's actual data on flower position: "Expt. 6: Position of flowers. –– Among 858 cases 651…
- Mendel crossed Parental true-breeding (homozygous) Purple flowered peas with true-breeding (homozygous) White flowered peas, and all the F1 offspring were Purple flowered. What was the phenotype and genotype of the F1 hybrids? 3/4 purple, PP: 1/4white pp .1/2purple. PP 1/2 whitce pp purple. PA purple Pp 近To assess Mendel’s law of segregation using tomatoes, a true-breeding tall variety (SS) is crossed with a true-breeding short variety (ss). The heterozygous F1 tall plants (Ss) were crossed to produce two sets of F2 data as follows. Set 1 Set 2 30 tall 300 tall 5 short 50 short Using the chi-square test, analyze the results for both datasets. Calculate the chi-square values and estimate the p-values in both cases. From the above analysis, what can you conclude about the importance of generating large datasets in experimental condition?In Table 2-1, state the recessive phenotype in each of theseven cases.
- In the pedigree shown in Figure Q19–14, the first born in each of three generations is the only person affected by a dominant genetically inherited disease, D. your friend concludes that the first child born has a greater chance of inheriting the mutant D allele than do later children.A. According to Mendel’s laws, is this conclusion plausible?B. What is the probability of obtaining this result by chance?1) Identify the most important advantage that Mendel's pea plants had for studying the inheritance of traits 2) Using no more than one sentence, please explain why this advantage or characteristic was critical for the success of Mendel's experimentsPBIKE GU IKE GU Assume that a cross is made between a heterozygous tall pea plant and a s short pea plant. Fifty ofte GOR ano 582 produced in the following frequency: 30 = tall, 20 = s a) What frequency of tall and short plants is expected? b) To test the goodness of fit between the observed and expected values, provide the needed statement of the null c) Compute a Chi-square value (Table value is equal to 3.84) associated with the appropriate test of significance. d) How many degrees of freedom are associated with this test of significance? 29056 290582
