!BIO!2110!–!Genetics! Name!______________________________!Recitation!6!–!!!Group!Members!_____________________________!!!!!_________________________!!!!!__________________________!!!1.! In!Eleutheran!aquatic!swine,!variation!in!ear!shape!results!from!allelic!variation!in!a!single!gene.!!The!same!is!true!for!variation!in!nose!shape.!!!i.! determine!the!frequency!of!recombination!between!these!two!genes,.!!!P0 pointed ears, pointed nose x round ears, blunt nose ↓ F1 pointed ears, pointed nose x pointed ears, pointed nose ↓ F2 pointed ears, pointed nose 919 pointed ears, blunt nose 273 round ears, pointed nose 285 round ears, blunt nose 123 !! !!2.! In!Eleutheran!aquatic!swine,!variation!in!ear!shape!results!from!allelic!variation!in!a!single!gene.!!The!same!is!true!for!variation!in!nose!shape.!!!i.! Determine!the!frequency!of!recombination!between!these!two!genes!(if!you!reject!independent!assortment.!ii.! Is!the!recombination!frequency!determined!from!these!data!the!same!as!the!recombination!frequency!determined!in!question!1?!!Was!this!expected?!!Why!or!why!not?!iii.! Why!is!the!pattern!of!phenotypic!segregation!different!for!this!cross!than!for!the!cross!shown!in!question!1?! P0 pointed ears, blunt nose x round ears, pointed nose ↓ F1 pointed ears, pointed nose x pointed ears, pointed nose ↓ F2 pointed ears, pointed nose 881 pointed ears, blunt nose 315 round ears, pointed nose 323 round ears, blunt nose 81 ! !!potentially!useless!information!!!probability!df!0.90!0.50!0.20!0.05!0.01!0.001!1!0.02!0.46!1.64!3.84!6.64!10.83!2!0.21!1.39!3.22!5.99!9.21!13.82!3!0.58!2.37!4.64!7.82!11.35!16.27!4!1.06!3.36!5.99!9.49!13.28!18.47!5!1.61!4.35!7.29!11.07!15.09!20.52!!df!=!n!–!1!!!!!!!!! ¼!p2! !!!!!!!!!! !parental!gamete!frequency!=!½!(1!–!p)! ! recombinant!gamete!frequency!=!½!p! !θT!=!π!
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