Yukilevich and True (2008) mixed 30 male and 30 female Drosophila melanogaster from Alabama with 30...
Yukilevich and True (2008) mixed 30 male and 30 female Drosophila melanogaster from Alabama with 30 male and 30 females from Grand Bahama Island. They observed 246 matings; 140 were homotypic (male and female from the same locations), while 106 were heterotypic (male and females from different locations). Do flies mate with preference to their home territory using an appropriate significance level?
A) Give the value of your test statistic and P-value of your test statistic using excel.
Homework Answers
from above test statistic z =2.168 ~ 2.17
and p value =0.0150 (try 0.0151 if test statisitc is required till 3 decimal places
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Yukilevich and True (2008) mixed 30 male and 30 female
Drosophila melanogaster from Alabama with 30...
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2. You cross a homozygous wildtype female Drosophila (fruit fly) with a male that has a black body (bb). You mate two of the F1 (first generation) flies and examine the F2 (second generation) off...
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The following Drosophila crosses were performed Cross 1 Parents: white-eyed straight winged male x red-eyed; curly winged female Progeny: all red-eyed flies, half of which are curly winged Cross 2 (reciprocal cross) Parents: red-eyed curly winged male x white-eyed straight winged female Progeny: white-eyed males and red-eyed females, half of each have curly wings. Test crosses with the curly winged progeny from cross 1 and 2 to homozygous straight winged flies resulted in all half curly and half straight winged...
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Evolution theory predicts a physiological cost of increased reproduction that translates in shorter life span. The data file Large.Fruitftly describes a study of the cost of sexual activity in male Drosophila. The authors randomly assigned male fruit flies to five sex conditions. In the first condition, the males were kept alone. In the second condition, each male was placed in the company of one virgin female (replaced every other day with a new virgin female to provide reproductive opportunities). The...
Genetics questions, i need help!
1) For the Drosophila red/white cross, you crossed red females and white males (w'w, wy). a) Draw the Punnett Square for this cross (F1). What is the ratio of red females:red males? b) Suppose in the F1 generation, you observed 70 red females and 30 red males. Do a Chi- Square Test to test the hypothesis of the ratio you found in part (a) above. Do you accept or reject the hypothesis? c) Draw the...
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