A color-blind father and a normal vision mother who did not carry the gene for color-blindness will have 50% of the sons color-blind and 100% of the daughters as carriers for color-blindness.

Question

Quizplus · Accepted Answer

The sons have a 50% chance of inheriting the color-blindness gene from their father, but the daughters have a 50% chance of not inheriting the gene at all and therefore not being carriers. So, the percentage of daughters who are carriers is not 100%.

A Color-Blind Father and a Normal Vision Mother Who Did