A population of 100 birds is in Hardy Weinberg equilibrium There are phenotypes that can be expressed as AA Aa and aa where A is

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A population of 100 birds is in Hardy Weinberg equilibrium There are phenotypes that can be expressed as AA Aa and aa where A is dominant over a and causes a red colouring of the feathers on the wing You observe that 84 birds have red wings Let A be the p allele What are the genotype frequencies A AA 0 16 Aa 0 48 aa 0 36 B AA 0 36 Aa 0 24 aa 0 16 C AA 0 36 Aa 0 48 aa 0 16 D AA 0 16 Aa 0 24 aa 0 36 E AA 0 4 Aa 0 2 aa 0 6 21 Paleontologists date fossils using a variety of approaches Which of the following statements is correct A In radiometric dating small magnetic particles line up with the poles but since polls reverse the orientation switches giving a time calibration B Index fossils in the same layer you are working with give a time calibration point C The positions of relative strata give absolute age estimates D Paleomagnatism refers to the decay of isotopes at predictable rates E Isotopes decay at random rates giving only relative time estimaten

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