Problem 220 Experimental Insight 21 in the textbook describe

Problem 2.20 Experimental Insight 2.1 in the textbook describes data on the kernel color distribution of bicolor corn, collected by a genetics class like yours. To test the hypothesis that the kernel color of bicolor corn is the result of the segregation of two alleles at a single genetic locus, the class counted 12,356 kernels and found that 9304 were yellow and 3052 were white Use chi-square ana lysis (The Chi Square Table is given below) to evaluate the fit between the segregation hypothesis and the class results The Chi Square Table Probability (P value 0.95 0.90 0.70 0.30 020 0.10 0.05 0.01 0016 0.15 2.17 083 0.10 0.7 .39 2A 3.22 5.99 3.82 ase 6.25 7.82 ,3S 627 949 0.7 2.200 7.78 3,28 8,47 3.000 13s 2.20 3.83 283 4.67 11.07 7.29 9.24 5.09 20.S2 7.23 8,56 2.59 22.46 9800 1202 5.53 7.34 952 .03 3.36 6.39 834 1066 2.24 7.27 .78 1344 5.99 8.15 2.90 4.63 7.28 14.07 2.17 24.32 8A8 3A9 20.09 26.13 333 4.17 6 92 2167 27.88 394 23.2 29.59 4.58 5.58 968 24.73 31.26 S,81 18ss 2.34 5.12 6,99 622 8,15 21.06 1434 7.32 9.3 22, 5.23 630 9.03 2622 32,9 7.04 993 2.36 27.69 34,S3 369 6.S7 7.79 082 29.14 36.12 7.26 8 SS 72 30,S8 37,70 Fail to ect chance hypothesi ect chance hypothe

Solution

Answer:

A).Chi-square value= 0.59

B). 1

degrees of freedom= (sample size)-1

= 2-1 =1

C). 0.30 - 0.50

D). No

Fail to reject the hypothesis

Phenotype	Observed(O)	Expected (E)	O-E	(O-E)2	(O-E)2/E
yellow	9304	9267	37	1369.00	0.15
white	3052	3089	-37	1369.00	0.44
	12356	12356			0.59