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Secondary 4 • November 20, 2025
What does a half-shaded circle/square
represent in this pedigree?
image.png

Answer (1)

Student Answer
November 20, 2025
Thank you for your question!

A half-shaded circle or square means that the individual is a carrier of one recessive allele, but that they do not display the trait themselves.

This page from the Alloprof website explains genetics:
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