Answer Happy

Insert Table 1. Raw data and calculation of mean diameter of cleared region for the bench group results (1) Grain no. With embryo 1 2 3 4 5 Mean (average) 20 15 13 14 10 14.4 Diameter (mm) of clearing (starch hydrolysis) Without embryo - at GA concentration shown None 10 M 10- M 10-7 M 10-5 M Unknown 27 42 40 35* 27 24 12 47 35 35 38 10 9 37 43 35 26 23 16 39 40 35 12 20 5 35 39 35 20 17 13.8 40 39.4 35 24.6 18.8 *Other seeds were indeterminate, therefore, one value was recorded.
Insert graph (Fig. 1): Mean diameter of clearing vs -log[GA]. Mean diameter of clearing vs Hog10[GA]. 50 45 40 35 30 Mean Diameter 20 15 10 5 0 10-5 M Unknown 10-6 M 10-7 M 10-8 M GA Concentration (-log10[GA]) Is the relationship between diameter of clearing and log10GA linear as expected? Within what concentration range? Does the figure show evidence of the greatest concentration to be supra-optimal? Why (not)? (2) From its intercept on the line of best fit, what was the unknown concentration of GA? How accurate is this estimate? Justify your answer. (2)