outline an effective crossing program that can be used to obtain the...

...a/a;b/b,c/c pure line? a corn geneticist has 3 pure lines of genotypes a/a;B/B; C/C , A/A;b/b;C/C and A/A;B/B;c/c. All the phenotypes determined by a,b, and c will increase the market value of the corn, so he wants to combine them all in one pure line of genotype a/a;b/b;c/c
a. outline an effective crossing program that can be used to obtain the desired genotype

b. at each stage state exactly which phenotypes will be selected and give their expected frequencies

c. is there more than one way to obtain the desired genotype? which is the best way?


Assume independent assortment of the 3 gene pairs ( note: corn will self-or cross-pollinate easily)
 
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