Question

QUESTION 19 Copy 2 of Palomino horses, having buckskin coloring (BB) and small ears (ww), were crossed with a Grey horse, having dapple coloring (bb) and large ears(WW). The F1 generation was buckskin with large ears, so it is assumed that these are the dominant traits. The F2 distribution was: 38 Buckskin large, 26 buckskin small, 23 dapple large, and 13 dapple small. Phenotype Observed Expected O-E (O-E)2 (O-E)/E Buckskin, large 38 Buckskin, small 26 Dapple, large 23 Dapple, small 13 Total= 100 Chi-Square Value= ? Calculate the Chi-Square Value to two decimal places. Numbers calculated along the way (the values that go in the table) should also be rounded to two decimal places in each column. Enter just the number into the answer box (Example: 21.55)

Answer 1

Phenotype Observed Expected O-E (O-E)^2 (0-E)^2/E Buckskin Large 38 56.25 -18.25 333.0625 5.921111 Buckskin, Small 26 18.75 7.25 52.5625 2.803333 Dapple, Large 23 18.75 4.25 18.0625 0.963333 Dapple, Small 13 6.25 6.75 45.5625 7.29 Total 100 100 0 449.25 16.97777 The answer is 16.98