Blood Types?

Question

Two parents, genotypes IAIB and IBi, produce a child. Determine what the probability is that the child may display each of the four ABO blood types. Use a Punnett Square.

Ok--I know One Parent is Type AB and the other parent is B . So I know the possible blood types for this child is Type A, B, or AB. Type O would be impossible. Right? Well I really don't know how to set it up in the Punnett Square. So any help there would be great

Answer 1

Parents: IAIB IBi
Gametes from first parent on the left side of the Punnett square. (Just separate the alleles or genes that the parent has.) IA and IB.
Gametes from the second parent on the top of the Punnett square: IB and i

For each box inside the Punnett square match the gamete from the far left of the square with the gamete from the top of the square.
First row of boxes will say: IAIB and IAi These are blood types AB and A.
Second row of boxes will say: IBIB and IBi. These are both blood type B.

Yes, Type O is impossible. The expected phenotype ratio is 1 Type AB: 1 Type A: 2 Type B.

The expected genotype ratio is 1 IAIB: 1 IAi: 1 IBIB: 1 IBi.

Answer 2

Ok this and sex linked genes can make it more tricky to do the punnett squares. You can also write these blood types as
AA, AO, BB, BO, and OO (O is reccessive, while A and B have the antibodies and are written as I and i).
I feel this makes it more simple to understand.
So in your case you have AB x BO (remember i=O)
so your offspring's genotypes will be AB, AO, BB and BO and phenotypes are AB, A and B (x2).
Both ways (ie IA, ii and the AO, OO are used, but you may find that using the second type will help you "understand" it better and make it easier to do punnett squares.

Answer 3

based on the descriptions and my hassle-free determination [in lots of cases biased] I in good shape AB and O with not one of the negatives nevertheless my self assurance may well be perceived for conceitedness solar - Aquarius Moon - Aries lower back bias from decision :/.... human beings elect what they elect and it ought to no longer be the actuality additionally in ordinary terms 4 varieties... Dunno my definitely blood form :/... yet i does not be stunned if it exchange into AB or O... nevertheless it is 50% hazard mixed If I had to in good shape each and every to an factor O = fireplace or Water B = fireplace + Sag + Pisces perhaps Water AB = Air or Earth actually A = Earth... in particular Virgo.... additionally fastened signs and symptoms and Water signs and symptoms, possibly fastened Water too those descriptions are slightly too a great number of each and every sign and not complicated under pressure right into a sparkling determination yet lower back like the previous question i might say if somebody had like a setup with maximum cancers solar Scorpio moon and a great number of water without Air after which "have been given" [chosen] Sanguine... i may well be like duuuuuuuuuuuude.............BS!!!!!!!!!!... Liar!! in assessment to human beings i'm no longer politically properly suited, i'm hassle-free... And astrologers do in contrast to working backwards, or asserting an indication is not greater of "this, or 'that" ... I have no interest in doing that particularly if it is the actuality....

Answer 4

___IA______IB

Io__IAIo____IoIB

IB_IAIB____IBIB
as per the punnet square above
pnenotypic expression of the blood groups-
A:AB:B-
1:1:2

we see that type O will be impossible as the parent with AB type can contribute only A or B allele and for expression of O the recessive allele Io should be homozygous recessive i.e. IoIo.
(I stands for immunoglobulin)

Answer 5

Parents: AB x Bi
Kids: 1/4 AB, 1/4 Ai, 1/4 BB, 1/4 Bi

You can also use O instead of i (ex. BO instead of Bi).

Answer 6

To set it up in the square, set up the "B" as "|O|B|" - then your square will work :-)

Answer 7

Sorry I can't answer your question, But
I was wondering since we all came from
Adam & Eve how do we have different
blood types anyway ?