Answer:
Mutation induced incomplete dominance of the alleles
Explanation:
Mutation refers to any change in the nucleotide sequence of an organism's genetic material (DNA). In this question, the change affects the feather colour of a bird i.e. making a black feathered bird produce a white chick. The white chick produced can be said to be a "MUTANT" because it is a result of mutation in the feather colour gene.
When this mutant white feather colored bird mates with a wild type (naturally) black feathered bird, iridescent grey offsprings emerge. The change in colour can be attributed to INCOMPLETE DOMINANCE. This is because the mutation that occurred caused a change in the alleles making dominant allele incompletely dominant over the recessive pair. Hence, a third phenotype (grey), different from the two parental phenotypes (black and white), is produced.
If they have wings it could be that they all have wings. Or if they all have the same eye color it could be that. But that depends on their alleles.
<span>The skin's ability to make it from sunlight decreases is what I found online</span>
First scientist was Carl Linnaeus