What has to be done to remove asbestos?

Asbestos is not to be taken care of by non-professionals, it needs to be done with special equipment since it is so dangerous to unprotected humans

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)