CAN PARENTS HAVE AN O NEGATIVE BABY WHOSE BLOOD TYPE IS A AND AB positive?

Question

Both parents are A and AB positive is it possible that they have a 0 negative baby?

Answer 1

No, that combination could only have A, AB, or B children, depending on if the A type parent carries AA or Ao alleles.

Answer 2

No. The parent who's blood type is A might have the genotype AO, which would allow him to have an O baby with O blood, but the other parent has to pass on either an A or a B allele to the baby, and the baby could only be O if he had neither an A nor a B allele. The positive and negative are fine since positive is the dominant phenotype so both parents could be heterozygous for it, but a person with type AB blood absolutely cannot have a child with type O blood (unless a spontaneous mutation occurs in the gamete that renders the allele non-functional, which is unlikely but possible)

Answer 3

Nope. The A parent can contribute an O but the AB parent must contribute an A or B.

Possible genotypes of the baby are: AA, AB, AO, BO
Blood types would be: A, AB, A and B in that order.

Two positive parents can produce a negative baby if each is heterozygous for the rh factor.

Hope that helps.

Answer 4

it really is an enticing question and having examine the information on the web pages less than, I do not ignore that there is an danger. (The second information superhighway web site illustrates this). The rhesus unfavourable gene is recessive (ie., non-dominant) and the Rhesus powerful gene is dominant. even although both moms and dads would nicely be Rh powerful, they'd also carry the recessive unfavourable gene. So if 2 Rh powerful moms and dads both carry recessive unfavourable genes, then there's a a million in 4 probability of somewhat one being RH unfavourable and also a probability of alternative little ones wearing the recessive unfavourable gene, (even if they are going to be Rh powerful). If both moms and dads in worry-free words have RH powerful genes and no recessive unfavourable gene, then there is not any way the little you will be RH unfavourable. undergo in recommendations that in genetics some genes are dominant, and some are recessive. The recessive genes give way to the dominant ones, yet should be surpassed on to little ones. If a toddler finally ends up with 2 recessive genes (quite than one dominant and one recessive) then they tackle that function managed through the recessive gene. in the different case the dominant one wins.

Answer 5

no, the baby has to be a or ab.

Answer 6

your first answerer is correct. see the chart at the site listed below.

Answer 7

no, if it does, id be doing some serious dna testing