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for white feathers (recessive). According to the Punnett square for this cross, what percentage of...

for white feathers (recessive).
According to the Punnett square for this cross, what percentage of offspring is predicted to have blue feathers?
25 percent
50 percent
75 percent
100 percent

Answer

The percentage cannot be determined from the visible portion of the question: the Punnett square and the parents’ genotypes are not shown. If blue is dominant, a white bird crossed with a heterozygous blue bird produces 50 percent blue offspring; crossed with a homozygous dominant blue bird, it produces 100 percent blue offspring.

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