A child is born to a mother with blood type IA IB and a father with blood type IBi. Which of the following blood types is impossible for the child to have?
AB
O
B
A
Thank You Everyone!
2007-01-15 06:56:29 · 4 answers · asked by katerina 1 in Science & Mathematics ➔ Biology
the only possibilities are A, B, or AB. Not O, because both parents would have carry an O allele for a child to have the type O phenotype.
2007-01-15 07:46:23 · answer #1 · answered by plantgirl 3 · 0⤊ 0⤋
Use a punnet square to work this out. Use a 2 x 2 square with four boxes. Place the mother's blood type at the top: list A above the first square and the B above the second suqre. List the father's type at the left. Place the B next to the upper left box and the letter "o" next to the lower left box. Complete the boxes begining with the upper left. Cross the A and the B to get AB. Place AB in the upper left box. Cross the mother's B with the father's B. This is done in the upper right box. Place a BB in the upper right box. Cross the Mother's A with the Father's O in the lower left box. The result is in theAO lower left box. Finally, cross the Mother's B with the father's O in the lower right box. The result is BO. Let's see: we have AB, BB (B), AO (A), AND BO (B). No type O in this square.
2007-01-15 15:14:25 · answer #2 · answered by Clark P 1 · 0⤊ 0⤋
O for sure. It's recessive. Do a Venn diagram and you'll see.
2007-01-15 15:00:51 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Or B or O
2007-01-15 15:01:34 · answer #4 · answered by Anonymous · 0⤊ 0⤋