Expert answer:Alamance BIO 111 – Genetics of Corn Experiment 1 A

  

Solved by a verified expert:3/19/2016Late Nite LabsGenetics of CornSHORT ANSWERExperiment 1: A Monohybrid CrossDirections: Use complete sentences and bold the answers and have them in a different color. Failureto do so will result in points being deducted.Lab Results1. What proportion of purple kernels is expected in the progeny of the monohybrid cross in Experiment 1?2. Fill in the table below with the data you collected during Experiment 1Purple KernelsYellow KernelsRow 1Row 2Row 3Row 4Row 5TotalData Analysis3. Use the data you collected in Experiment 1 to calculate the percentage of each phenotype.4. Suppose you observed 240 progeny that resulted from a monohybrid cross and involved genes that obeyed Mendelianinheritance, how many heterozygous progeny would you expect to observe?Experiment 2: A Dihybrid CrossLab Results1. Fill in the table below with the data you collected during Experiment 2.Purple, Smooth KernelsPurple, Wrinkled KernelsYellow, Smooth KernelsYellow, Wrinkled KernelsRow 1Row 2Row 3Row 4Row 5TotalData Analysis2. Fill in the following table with the percentage of each type of kernel.PhenotypePurple, Smoothhttps://labs.latenitelabs.com/api/assessment/shortAnswer/109379/56736Proportion of Progeny1/43/19/2016Late Nite LabsPurple, WrinkledYellow, SmoothYellow, Wrinkled3. According to your results in Experiment 2, what would be the correct hypothesis to test to see if the traits were inheritedthrough Mendelian genetics? Record this answer for use in a later question.4. For the cross in Experiment 2, how many degrees of freedom are there? Record this answer for use in a later question.5. Determine the ?2 value for Experiment 2 using the following equation. Record your answer for use in a later question.PhenotypeObservedExpected(O­E) 2(O­E)(O­E) 2/EPurple, smoothPurple, winkledYellow, smoothYellow, wrinkledSum6. Use the degrees of freedom and ?2 value from earlier questions to determine the p value for Experiment 2 using the tableof critical values for ?2 . Record your answer for use in a later question.Conclusions1. Use the hypothesis, degrees of freedom, ?2 , and p value determined in earlier questions to conclude whether corn #2 isfollowing Mendelian genetics. Explain your reasoning.2. If you crossed Cat #1 and Cat #2 and observed two unlinked traits that follow Mendelian genetics, what must the genotypeand phenotype of Cat #2 be?Hair length:Dominant = long hair (L)Recessive = short hair (l)https://labs.latenitelabs.com/api/assessment/shortAnswer/109379/567362/43/19/2016Late Nite LabsCoat color:Dominant = white (W)Recessive = some color (w)3. In a test population of 1000 people, 200 display albinism. You hypothesize that this trait follows Mendelian genetics with a3:1 ratio of non­albinism to albinism. Use the ?2 test to determine whether the data support the hypothesis or not. Showyour steps and explain your reasoning.?2 = ? [(O – E)2 /Ewhere O is the observed number of individuals in a defined class, and E is the expected number of individuals in a definedclass based on the hypothesis. The ? symbol indicates that you should sum the results for each defined class.SourcesPierce et al., Genetics 2nd Edition.https://labs.latenitelabs.com/api/assessment/shortAnswer/109379/567363/43/19/2016https://labs.latenitelabs.com/api/assessment/shortAnswer/109379/56736Late Nite Labs4/4