AP Biologymediummcq1 pt

In a cross AaBbCc × AaBbCc (all unlinked), what fraction of offspring are AABBCC?

A.1/64
B.1/8
C.1/16
D.27/64

Explanation

Core Concept

Each gene's homozygous dominant probability is 1/4, and the three unlinked genes multiply: (1/4)³ = 1/64.

Correct Answer

A1/64

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