I am given the following information about Combs of domestic chicken:
Four comb shapes in domestic chickens are Single, Rose, Walnut & Pea. Two gene loci P/p, and R/r interact to affect comb shape. The affect of P/p depends on which of the R/r alleles are present in the bird's genotype.
P-R- = Walnut Comb
ppR- = Rose comb
P-rr = Pea comb
pprr = Single Comb
Q. Which two genotypes should a poultry breeder cross to produce chickens with 25% of each genotype?
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Epistasis and genetic crosses? watch
- Thread Starter
- 22-02-2016 20:21
- 27-02-2016 05:54
PpRr x pprr
Pprr x ppRr
you can try to do the full genetic diagram of these crosses.