Yes, no worry about ABO.
Yes, they can have a child with blood type AB, which is the rarest of the four types.
the answer is no .. its just impossible
the answer is no .. its just impossible
Parents of blood type O can only have children with blood type O. Because type O is recessive, you know that the parents are homozygous O.
both parents carried the recessive gene for type O blood. the baby then inherited 2 recessive genes and received type O blood. the reason the parents didn't have type O blood is because they carried genes that were more dominant.
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.
Both parents have 2 blood alleles of 3 types: A, B, and O. Thus, parents can be type A (AA or AO), type B (BB or BO), type AB, or type O (OO). When they have a child, the child gets one allele from the mother, and one from the father. So, if both parents have type AA, the child will be type AA. If both have type AO, the child can be type A or O. It's rather simple.
The blood group of the child will be either A or O. The baby's blood group is always determine by the genotypes of his/her parents. Lets see following conditions: 1) Both parents have AA and AA blood type (both homozygous dominant): Their child would always have type A blood group (AA). 2) If any one of the parent has genotype AA and other AO ( i.e. one homozygous dominant and other heterozygous dominant): Their child would have type A blood group (AA or AO). 3) If both parents have genotypes AO ( both heterozygous dominant): Then their child would have either blood group type A or O ( i.e. AA /AO /OO). Just carry out the crosses by forming the gametes of the parents and check their recombination's. You will definitely understand this.
the baby can have several types depending on the parents phenotypes:1.phenotype- (BO)X(BO)the child can be 75% type B and 15% type O.2.phenotype-(BB)X(BO)the child can be 100% typeB.3.phenotype (BB)X(BB)the child will be 100% type B.
Yes, no worry about ABO.
Nope
There are 4 genes involved in determining the the child's blood type, 2 of the apply to the A/B/O blood type. If the father is O it means the has 2 genes that are labeled i and tell his body not to produce A or B markers on the blood cells. The mother is A so she can be either A/i or A/A if she has the i gene there is a 50% chance the child will be type O and if she has A/A it is a 100% chance the child will be type A. Overall there is a 75% chance of the child having type A blood (can be further refined based on % of population in your country with A/A to A/i genes). the + or - blood type is determined by another 2 genes, both parents are plus so they can be either +/+ or +/-. All together this means there is a 62.5% chance of the child being +