A single gene in humans causes blood to be either rhesus positive (dominant allele) or rhesus negative (recessive allele). a woman with rhesus negative blood has already had a child with rhesus positi

A single gene in humans causes blood to be either rhesus positive (dominant allele) or rhesus negative (recessive allele). a woman with rhesus negative blood has already had a child with rhesus positive blood. there could be complications during pregnancy if she has another child with rhesus positive blood. what is the probability of this, if the father is the same, and if his mother is known to have rhesus negative blood