2007-02-18 13:16:43 · 4 answers · asked by prmykdee 2 in Science & Mathematics ➔ Biology
yes, if the parents are heterozygous for the rH factor. positive is dominant and negative is recessive. so lets say R stands for positive and r stands for negative, the parents could each have the genes like this Rr which be expressed as positive. they could have a child that ends up with rr which would be expressed as negative rH factor.
does this make sense?
2007-02-18 13:33:19 · answer #1 · answered by Bio-student Again(aka nursegirl) 4 · 2⤊ 1⤋
Yes. As long as they are both carriers of the A- blood type. There is a 1:4 probability of this occurring.
2007-02-18 21:26:39 · answer #2 · answered by Jessica H 1 · 1⤊ 1⤋
Yes it's possible,parents pass on the blood type but not the Rh factor that accounts for the + or - blood groups,that's unique to each individual.
2007-02-18 21:29:28 · answer #3 · answered by Anonymous · 0⤊ 3⤋
Yes, there is 25% chance if each parent has the genes A+A-. But if each parent is A+A+, then no they can't have a child who is A-.
2007-02-18 21:26:30 · answer #4 · answered by letsgostate05 2 · 1⤊ 1⤋