No, only in a perfect world
If by heterozygous you mean someone has one allele for A (AA or Aa) type blood and one for O (ii), though a third allele, for type B, is also a possibility. If the parents are AA X Ai (phenotype would be A for both) then possibilities for the offspring are: Ai and AA, and all will be type A. If it's AA (A Blood) x AB (AB blood), then their children will be either AA or AB.
The child can have the same blood type. It is possible if the child obtains the allele IA from one parent and IB from the other. So if a person with blood type AB provides IA or IB and the other parent provides the other allele, then the child may have the same blood type i.e. AB positive.
Your momma is a either AB or B type. I'm not sure whether it is positive or negative though. I would assume positive. O = i i genotype A = Either Ia Ia or Ia i B= either Ib Ib or Ib i AB = Ia Ib since you're father is ii, you HAVE to be Ib i.
This is called co-dominance. This is when 2 or more alleles are expressed at the same time. In other words they both affect the phenotype. In the example of human blood ABO type we have an allele for A = IA, B= Ib O=iIAIb = AB blood typeIbIb = B blood typeIai = AIaIa = A bloody typeIbi = B blood typeii = O blood type
yes, a parent with a would have the genotype B,O (really IB,i) and the other parent would have A,O (really IA, i)or an alternative is A,A (really IA,IA). In atleast one of the squares in punnett squares *depending on which genotype for the second parent you chose* A,O (really IA, i) would be there.
In the perfect world, no. IA and IB are codominant so both alleles are represented in the person's phenotype. Blood type A can only be represented by itself in a phenotype if the person's genotype is either IA IA or IA i.(The result of a DNA mutation may be able to create a phenotype of blood type A out of a (purebred) cross (of blood type A and B).No. IA and IB are both codominant . Blood type A can only be represented by itself in a phenotype if the person's genotype is IAIA or IAi. Blood type B can only be represented by itseft in a phenotype if the person's genotype is IBIB or IBi. If the phenotype (blood type) is AB the genotype is IAIB.
In human beings blood group is determined by four alleles IA, IB, Ii A gene contain only two alleles either IA IA-- result A group IA IB--- result AB group- because of the phenomenon of co-dominance IA Ii---- result A group- A is dominant over i IBIi--- result B group- B is dominant over i IB IB-- result B group Ii Ii-- result O group dr.sreejithnamboodiri@gmaill.com
IA and IB is dominant to ii or sometimes preferred IO.
If by heterozygous you mean someone has one allele for A (AA or Aa) type blood and one for O (ii), though a third allele, for type B, is also a possibility. If the parents are AA X Ai (phenotype would be A for both) then possibilities for the offspring are: Ai and AA, and all will be type A. If it's AA (A Blood) x AB (AB blood), then their children will be either AA or AB.
the human blood type is controlled by the gene 'I'. It is of 3 types Ia, Ib and i. the alleles 'Ia' and 'Ib' produce slightly different sugar polymers protruding on its surface while the 'i' doesn't produce any sugar polymers. as humans are haploid the contain 2 alleles out of the 3 I gene alleles, as the individual alleles come from the parent gamete. the alleles 'Ia' and 'Ib' are completely dominant over 'i', i.e, if alleles 'Ia' and 'i' are present then only the allele 'Ia' will be expressed, and the same for 'Ib' and 'i' happens, but when 'Ia' and 'Ib' are present together then they both express their own types, this is because of the co-dominance. Ia + Ia = IaIa = A Ia + Ib = IaIb = AB Ia + i = Iai = A Ib + Ia = IbIa = AB Ib + Ib = IbIb = B Ib + i = Ibi = B i + i = ii = 0 (zero commonly known as O)
Ia Ib
Ia Ib
The IA and IB alleles code for the A and B antigens on the membranes of erythrocytes. These two antigens can exist together, as in a person with the AB blood type. Since the two alleles can express their character simultaneously, they are considered codominant.
The mother will produce two types of gametes: IA and IO (mother is A) The father is AB his genotype is IAIB, thus he will produce these kind of gametes: IA and IB Four combinations are possible IA from Mother and IA from Father: The child has genotype IAIA and he has blood group A IO from Mother and IA from Father: The child has genotype IAIO and he has blood group A IA from Mother and IB from Father: The child has genotype IAIB and he has blood group AB IO from Mother and IB from Father: The child has genotype IBIO and he has blood group B Thus the phnotypic ratio is blood group A:B:AB = 2:1:1
The child can have the same blood type. It is possible if the child obtains the allele IA from one parent and IB from the other. So if a person with blood type AB provides IA or IB and the other parent provides the other allele, then the child may have the same blood type i.e. AB positive.
Your momma is a either AB or B type. I'm not sure whether it is positive or negative though. I would assume positive. O = i i genotype A = Either Ia Ia or Ia i B= either Ib Ib or Ib i AB = Ia Ib since you're father is ii, you HAVE to be Ib i.
Because the actuality of IAIA is actually A then the father would be type A and the mother being type O they would produce children of Type A blood type. For the answer I chose A) A... I just had this on my Bio exam.