Question

MAX POINTS

A man sues his wife for divorce on the grounds of infidelity. Both the man and his wife have normal eyes, but the woman bears a baby daughter with coloboma Iridis (a fissure in the eyes). This trait is a sex-linked recessive trait.

1. Can the man's lawyer use this as evidence? Why or why not? Explain. (He can, as it is a sex-linked trait. I already have this answered).
2. Does the woman's lawyer have a counter-argument? Why or why not? (???)

Answer 1

No, Her lawyer could not have a counter argument (except for the occasional irrelevent OBJECTION) Becuase the man does not have the coloboma Iridis and neither does his cheating wife ( Both the man and his wife have normal eyes). The only way for the baby to have coloboma Iridis is for the man NOT to be her father. This would entail his wife's infedelity and the wife's lawyer could not deny it.