Ascientist finds a new organism that may be either a bird or a bat, but it is not clear which group it belongs to. he is pretty sure that the organism has analogous structures with bats and homologous structures with birds, as suggested by genomic data. the organism has one trait that is shared with bats but not birds. which group should he choose for the new organism and why?

The new organism should be placed with the bird group based upon the homology obtained by the genomic data. This would imply a shared common ancestor. The trait shared with bats but not birds could be an analogous trait.

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.