answersLogoWhite

0


Best Answer

A person with A positive blood may be a carrier for O negative blood. If the other parent is also a carrier of those traits, the baby could be O negative.

User Avatar

Josefina Kunze

Lvl 10
2y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

it is very possible.although it is impossible to get that with the parents the parents still has genes from the grandparents and great gradparent and etc. the punnett square goes on far back toward the first human beings. so if your were related George Washington for instance, if no one after him has big ears, you would have about 0.00000762939453% chance of having big ears. it is very very very very very very VERY EXTREMELY unlikely but happens in rare occasions

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

We are looking for the possible blood types of a baby.

Parental information:

  • Mother type B+ -- can be BB or BO and (++) or (+-)
  • Father type O+ -- is OO and (++) or (+-)
Baby receives one gene from each parent:
  • Baby is type BO (++) or (+-)
  • Baby is type BO (--)
  • Baby is type OO (++) or (+-)
  • Baby is type OO (--)
YES, the baby of a B+ mom and O+ dad can be either B neg or O neg.
This answer is:
User Avatar

User Avatar

Wiki User

12y ago

yes

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Is it possible for a b positive mom and an O positive dad to have an a negative baby?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

CAN A mother be a positive dad o negative and have a a positive baby?

Negative is recessive...you can have a negative also.


What if mom is a positive and dad is a negative can baby be 0 negative?

yes


Can a A positive mom have a b positive baby with a O negative dad?

yes


Can o negative dad and a positive mom have a baby?

Yes


Can baby be negative if mom is positive and dad negative?

It takes two rh negative parents to produce an rh negative baby.


Can a baby have O positive if mom is B positive and dad is O negative?

Yes, the baby can be O+, it should be noted though if the mother also carries the trait for a negative Rh factor the baby clould also be O-.


What possible blood types will a baby have if mom has is O plus and dad is O?

o negative


Can a baby be born with o positive blood if mom is a positive and dad in o negative?

It's possible if both parents are heterozygous for both Rh factor and ... type-A-ness, whatever the word for that is. That is if they're both +- and AO genetically, they'd both have blood type A positive, but they'd both have the potential to pass along blood type O and Rh factor negative. If the baby gets O- from both mom and dad, then the baby would be OO -- and therefore O negative.It's not necessarily what you would expect (7 times out of 8, the baby would be type A, Rh postive, or both), but it is possible.If they have a B negative baby, mom's been fooling around on dad.


Can an O positive mom and an A negative dad have an a positive child?

No, they cannot.


Can an O negative mom and an A positive dad have an O positive child?

No, they cannot.


Do I need to be the same blood type as my egg donor?

For blood types, you must consider the antigens and antibodies that are involved. epending on the presence or absense of these proteins, a person may have A, B, AB, or O blood. With pregnancy the chief concern is the Rh factor, which determines whether somebody is positive or negative. If mom is positive and da is positive, then the baby will be positive for the Rh factor, and there will be no complications. This same concept occurs for parents that are both negative for the Rh factor. If mmom is positive and dad is negative, then the dominant gene (positive) will be found in the baby and there will be no problems. However, if mom is negative and dad is positive, then the baby will attain a positive Rh factor and be inside the mom's (negative) body. Then, the om's body will produce antibodies to ward off the foreign blood of the baby, possibly killing it. As long as a doctor is informed of this, the mom can take shot periodically to prevent the production of such antibodies an keep the baby safe.


Can an O negative mother with RH negative and an O positive father make an A positive baby?

YES. Blood type is determined by two alleles. An "A" individual can be homozygous "AA" or heterozygous "AO" and still be considered type A. The same is true of a "B" individual. If the father is "AO" and the mother is "BO" then statistically, they have a 25% chance of having a child that is "OO" or type O.