Blood type questions?

Question

Hello! Thanks for ur help in these science questions. bless u

1. a man who is O and a woman who is AB have a family. what is the probabiluty of having a child with AB, A, B and O blood?

2. two man with types A and AB. Another woman, Rachaek has type A blood. Which man can produce their child to have type AB?

3. Jack has type AB blood. Bob has type A blood. Which man can be the father of Jennifer (woman)'s baby that has type A?

THis one's hard, help me with it-TY

Three babies were mixed up at the hospital. Can they match the arents to each baby?
Baby 1 has A type blood
Baby 2 has O
Baby 3 has AB
Parents have:
Samuels" AB and A
Johnsons B and A
Mitchells have O and AB

Thanks for your help!

Answer 1

You'll have to figure this out on your own, but here's some info for you.

According to the ABO system, which has been in use for many years, there are four blood types: A, B, AB and O. To understand how blood type is inherited, it helps to think of the four categories as groups. They represent the presence or absence of two antigens, or proteins, in the blood, A and B. Blood type O contains neither antigen.

Each person inherits two genes for blood type, one from each parent. The child’s blood type is determined by which two blood type genes (alleles) were inherited and whether they are dominant or recessive. Types A and B are dominant, while O is recessive. This means that if a child inherits an A gene and an O gene, that child will have type A blood. It is the same story with type B.

When a child inherits an A and a B allele, both are dominant, and the child’s blood type will be AB, containing both antigens. The only way to get type O blood is to inherit two type O alleles.

To have type B blood, the mother’s genetic combination is either BB or BO. There’s only one scenario in which a child with B and AB parents could wind up with type A blood. If the child got the O from the mother and the A from the father, the result would be type A. That’s not unlikely, since O is the most common blood type, followed by A.

However, if the mother’s second allele is B, then the only gene she can pass down is B. In that situation, the blood type would be B if the child got a B allele from the father, and AB if the allele from the father was type A.

The plus (+) or minus (-) signs indicate the presence or absence of Rh factor in the blood. It is important in terms of childbirth, but
unrelated to the ABO system of blood groups.

Answer 2

1 AB 0%
A 50%
B 50%
O 0%

2 The second male with type AB

3 Either. As long as Jennifer is not homozygous for B either male can father a child with type A.



Baby 2 has to belong to the Johnsons because one parent in each of the other sets is AB. That means they can not give an O to the baby. In order to have O, you must have two copies of O.

Of the 2 families left, Baby 3 has to belong to the Samuels. The Mitchells have an O, which can only give an O to the child. The child has an A and a B, therefore must belong to the Samuels.

Baby 1 then must belong to the Mitchells. The baby received an O from one parent and the A from the other.

Answer 3

2. The man with Type AB is the parent of the baby with AB blood, because the mother is A and the B had to come from the other parent.

3. Either man can be the parent because both have A in their blood.

Scroll down on this page and you will see the possible blood types of a baby considering the parent blood types. http://www.drgreene.org/body.cfm?xyzpdqabc=0&id=21&action=detail&ref=1003

Baby 1 belongs to the Mitchells
Baby 2 belongs to the Johnsons
Baby 3 belongs to the Samuels

Answer 4

Since you are a + and the baby could either be a - or a +, you will recieve a shot of Rhogam at 28 weeks and possibly right after delivery just to make sure that your body doesnt produce antibodies to attack the baby since the possibility that his blood type is different from yours. It sounds much more horrible than it really is, but I had the shot about a month ago and we're perfectly fine.

Answer 5

I think these are right I'm no doctor pretty sure though
1. 50% type A and 50% type B

2. The man with type AB

3. Both can be

Samuels-Baby #3
Mitchells-Baby #1
Johnsons-Baby#2

Answer 6

guess what i just took a test on this today!

1.AB=0%
A=50%
B=50%
O=0%

2. both of them can
it also depends if it is AO or AA