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its my homework, please help me with it, its confusing me.

2007-01-03 16:43:28 · 5 answers · asked by saturn 7 in Science & Mathematics Biology

5 answers

Parental phenotypes: AA or AO (type A) and AB (type AB)

Possible offspring phenotypes: AA, AB, AA, AB, or AA, AB, AO, BO

So, the possible offspring phenotypes are AA or AO- type A (50%), AB - type AB (38%), and BO - type B (13%).

2007-01-03 16:54:58 · answer #1 · answered by dtbrantner 4 · 1 1

There are three alleles for blood type - we'll call them a, b, and o. You get one from each parent. In this case, the first parent is blood type A, so their genotype can be either a/o or a/a (since o is recessive). The other parent is AB, so their genotype must be a/b. In that case, the children can have four possible genotypes: a/a, o/a, o/b, a/b. These will produce the phenotypes A, A, B, and AB respectively.

2007-01-03 16:56:41 · answer #2 · answered by astazangasta 5 · 0 0

a, ab or b, the parent with a blood could have solid A blood or could have AO blood, in a punnet square the B is the dominate trait so it could be A, AB, or B, no way it could be O if the other parent is AB... blood types, those are fun... to do a punnet square draw a box with 4 inner boxes, on the outside of the box put the parents so over box 1 on the top you could put A over one box and B over the other, then on the side put A on the top box's side then what ever other possability which in this case is A or O

so the phenotype would be AA- 50%
AB- 50%

or

AA- 25%
AO- 25%
AB- 25%
BO- 25%

2007-01-03 17:00:02 · answer #3 · answered by popeye 3 · 0 0

Only A or AB are probable. B is possible only if the A parent passed the recessive O gene to this child and the AB parent passes only the B.

2007-01-03 16:52:21 · answer #4 · answered by correrafan 7 · 1 1

It would be one of A, B or AB.

2007-01-03 16:50:27 · answer #5 · answered by apollo 2 · 2 0

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