A genetic cross was made between two types of pea plants. One type produces round and green seeds, while the other type produces wrinkled and yellow seeds. A plant breeder crossed these two types and then allowed the F1 generation to self-fertilize. The following data were obtained:
A genetic cross was made between two types of pea plants. One type produces round and green seeds, while the other type produces wrinkled and yellow seeds. A plant breeder crossed these two types and then allowed the F1 generation to self-fertilize. The following data were obtained:
F1 generation: all produce wrinkled and yellow seeds.
F2 generation: 157 produce wrinkled and yellow seeds
57 produce wrinkled and green seeds
54 produce round and yellow seeds
20 produce round and green seeds
a) Propose a hypothesis that you think is consistent with the observed data.
b) Test the goodness of fit between the data and your hypothesis using a chi square test.
c) Explain what your calculated chi square results mean.
![Chi Square Values and Probability
Null Hypothesis Rejected
Degrees of Freedom
P = 0.99
0.95
0.80
0.50
0.20
0.05
0.01
1.
0.000157
0.00393
0.0642
0.455
1.642
3.841
6.635
2.
0.020
0.103
0.446
1.386
3.219
5.991
9.210
3.
0.115
0.352
1.005
2.366
4.642
7.815
11.345
4.
0.297
0.711
1.649
3.357
5.989
9.488
13.277
5.
0.554
1.145
2.343
4.351
7.289
11.070
15.086
6.
0.872
1.635
3.070
5.348
8.558
12.592
16.812
7.
1.239
2.167
3.822
6.346
9.803
14.067
18.475
10.
15.
20.
∞ oi so
8.
1.646
2.733
4.594
7.344 11.030
15.507
20.090
9.
2.088
3.325
5.380
8.343 12.242
16.919
21.666
2.558
3.940
6.179
9.342 13.442
18.307
23.209
5.229
7.261
10.307
14.339 19.311
24.996
30.578
8.260
10.851
14.578
19.337 25.038
31.410
37.566
25.
11.524
14.611
18.940
24.337 30.675
37.652
44.314
30.
14.953
18.493
23.364
29.336 36.250
43.773
50.892](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F34f4e9a7-1568-4193-8851-4cdce676d1a2%2Fd1fe4945-67d1-4670-84d0-1c05850bc666%2Fflo0g1q_processed.png&w=3840&q=75)
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