Bio 201 S14 Class 6 2 7 14 v2

Loci on separate chromosomes and if they are far

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Unformatted text preview: 4N a A B B A A b B b 2nd division A A a b b b 2nd division B 2nd division B a a b A a B 4N B b A B B a B b or a b Independent Assortment two loci illustrated on two different chromosomes (in this case, A/a; B/b double heterozygote) nd A a A replication B 2 1st division a a A pre-meiotic cell (2N) a b or b A or 1st division 4N a A B B A A b B b division A A b 2nd division B 2nd division B a a b b A A 25% B 25% b 2nd a b B a B 4N B division a B b a 25% b 25% the outcome of independent assortment •  each chromosome is inherited independently from other chromosomes –  among the A gametes, 50% are B and 50% are b –  among the a gametes, 50% are B and 50% are b –  etc. •  loci on separate chromosomes (and if they are far enough away from each other on the same chromosome) are inherited independently of each other One of Mendel’s dihybrid crosses YYRR yyrr YYrr yyRR YyRr YyRr YYRR, YYRr, Y...
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