A puppy with blue eye, resulted from the brown and green eyed parents because there are two different genes for eye color.
There are two genes that are responsible for the eye color of the child. One is Green and another is Brown, both are dominant. This allows both of them to become carrier of the blue eye recessive allele.
Brown eye color (B) - Dominant
Green eye color (G) - Dominant
Blue eye colored (b) - recessive
Both mother and father will be heterozygous hence a child is resulted in the blue eyed puppy.
The Punnett's square is attached.
Therefore, a puppy with blue eye, resulted from the brown and green eyed parents because there are two different genes for eye color.
To know more about eye color inheritance,
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