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You are collecting data from a population of Drosphila melongaster, where you are looking at 2...

You are collecting data from a population of Drosphila melongaster, where you are looking at 2 non-linked trait – eye color (R – Red, r – white) and crippled wings (M – normal, m – crippled). The population of flies was a result of a cross of two heterozygote parents (RrMm X RrMm). You randomly grabbed 5 flies. What is the probability that 2 of these will be Red eyes and Normal wings, 2 will have Red eyes and crippled wings and 1 have white eyes and crippled wings? TIP: use Multinomial expansion equation. SHOW YOUR WORK. (5 points)

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Answer #1

The cross between the two parents yields 9:3:3:1 ratio. This ratio is used to determine the probability in the multinomial exapansion.

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