Cullen and his three brothers all have brown hair.
Cullen’s father has brown hair too.
Cullen’s mother, however, is the only family member that has red hair color.
What conclusion can you draw about the gene for hair color?
Cullen’s father has brown hair too.
Cullen’s mother, however, is the only family member that has red hair color.
What conclusion can you draw about the gene for hair color?