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Gregor Mendel was able to create specific principles to explain the observations he made during his studies of genetics. Mr. Smith has brown eyes, while Mrs. Smith has blue eyes. Mr. and Mrs. Smith have four children. Three of their children have brown eyes, while one of their children has blue eyes. What part of Mendel’s principle of dominance is shown in the situation described? a. All alleles are dominant. b. All alleles are recessive. c. Some alleles are dominant and others are recessive. d. Alleles are neither dominant nor recessive.
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Biology, 22.06.2019 08:00, cailinhannon4828
Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4
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