Most birds have a coloured pigment in their feathers, but in a few individuals, pigment is absent and the birds are albinos.
Albinism occurs when a bird is homozygous recessive for the gene which creates the coloured pigment.
If two albino birds mated, what describes the appearance of their offspring?
all albino
2 )
all coloured
3 )
50% coloured, 50% albino
4 )
75% coloured, 25% albino
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