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Published byAllison Powell Modified over 9 years ago
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11.2 MORE PUNNETT SQUARE PROBLEMS COMPLETE punnett squares to show the probable outcomes of each situation HIGHLIGHT the assigned parental phenotypes IDENTIFY the parental genotypes DETERMINE the probable genotype/phenotypes for the offspring
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SIMPLE DOMINANCE Guinea pigs: B=black fur b=white fur B BbBb BB Bb Black = 100% GENOTYPES w/RATIOS PHENOTYPES w/RATIOS BB 50% Bb 50%
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SIMPLE DOMINANCE EARLOBES: F = free earlobes / f = attached earlobes F f FfFf FF Ff Ff ff GENOTYPES w/RATIOS PHENOTYPES w/RATIOS FF 25% Ff 50% ff 25% Free 75% Attached 25%
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SIMPLE DOMINANCE ALBINISM: A = no albinism a = albinism A aaaa Aa GENOTYPES w/RATIOS PHENOTYPES w/RATIOS Aa 100% No albino
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INCOMPLETE DOMINANCE CARNATIONS: R = red r = white Rr = pink R rrrr Rr GENOTYPES w/RATIOS PHENOTYPES w/RATIOS Rr 100%Pink 100%
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CO-DOMINANCE HORSES: R = red r = white Rr = roan R r rrrr Rr rr GENOTYPES w/RATIOS PHENOTYPES w/RATIOS Rr 50% rr 50% Roan 50% White 50%
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INCOMPLETE DOMINANCE HAIR: H = curly hair h = straight hair Hh = wavy hair H hhhh Hh GENOTYPES w/RATIOS PHENOTYPES w/RATIOS Hh 100%wavy 100%
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SEX LINKED TRAITS FRUIT FLIES: R = red eyes r = white eyes X r y XRXrXRXr X R X r X R y X r X r X r y white eyes = 50% CIRCLE the offspring that have white eyes.
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SEX LINKED TRAITS HEMOPHILIA: H = normal blood h = hemophilia X H y XHXhXHXh X H X H X H y X H X h X h y males = 50% hemophilia females = 50% carriers CIRCLE the offspring that have hemophilia.
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SEX LINKED TRAITS COLOR BLINDNESS: B = normal color vision b = color blind X b y XBXbXBXb X B X b X B y X b X b X b y CIRCLE the offspring that are colorblind.
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MULTIPLE ALLELES ABO BLOOD TYPE: I A i I B i I A I B I B i I A i ii AB / B / A / O YES—if both parents are heterozygous PHENOTYPE GENOTYPE A IAiIAi B IBiIBi O ii
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MULTIPLE ALLELES ABO BLOOD TYPE: I A I B I B i I A I B I B I B I A i I B i PagesBakers Baby #1--ABaby #2--O I A i I B i I A I B I B i I A i ii
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