Introduction to Genetic Analysis 43

Introduction to Genetic Analysis 43 - 44200_02_p27-72 11:37...

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42 Chapter 2 Patterns of Inheritance 2. Now that the above results have “passed” the chi-square test because p ± 0.05, it does not mean that the hypothesis is true, merely that the results are compatible with that hypothesis. However, if we had obtained a p value of , 0.05, we would have been forced to reject the hypothesis. Science is all about falsiFable hypotheses, not “truth.” 3. We must be careful about the wording of the hypothesis, because often there are tacit assumptions buried within it. The present hypothesis is a case in point; if we were to carefully state it, we would have to say it is that the “individual under test is a heterozygote A / a and the A / a and a / a progeny are of equal viability.” We will investigate allele effects on viability in Chapter 6, but for the time being we must keep them in mind as a possible complication because differences in survival would affect the sizes of the various classes. The problem is that if we reject a hypothesis that has hidden components, we do not know which of the components we are rejecting.
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This note was uploaded on 01/10/2011 for the course BIOL BIOL taught by Professor Johnson during the Spring '08 term at Aberystwyth University.

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