Both fish seen here are African zebra cichlids. They have two color alleles. The allele for blue coloration is while the gene for orange coloration is 0. A fish that has both types oralleles will be marbled orange and blue. This type of fish
is not shown in the picture. Suppose that a male with genotype BO mates with a female that is also BD. What
percentage of each PHENOTYPE will their offspring have?
A
25% blue; 50% marbled; 25% orange
B)
25% BB: 50% BB, 25% BB
50% blue; 50% orange
D
50% BB: 50% BO

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos