Yes this is true only if both parents are heterozygous positive. This means that the parents genotypes are +- for blood type. + blood type is dominant over - blood type, so this means that one can only have negative blood type if their parents are either heterozygous or homozygous recessive.
A helpful tool to finding out the probability for this question would be to use a punnett square. If you used this method you would find out that two heterozygous positive blood type parents have a 25% chance of producing offspring with negative blood type.
Yes, if both the mother and the father are carriers of the recessive Rh negative trait, they can produce a child with O negative blood type. The child would inherit one Rh negative allele from each parent, resulting in a negative blood type.
No. Two negatives can't make a positive.
For two parents to have a child with type O negative blood group, both parents must have at least one O and one negative Rh factor allele. The possible parental blood group combinations could be O negative x O negative, O negative x O positive, A negative x O negative, or B negative x O negative.
The possibilities include B positive, B negative, O positive, O negative.
Yes. The child will be either A positive or B positive or even AB positive. If the grandparents have a negative (A negative, B negative), there is a slight chance that the child will have a negative. A type O is out of the question. The fact that there are two positive parents means that there is no risk to the mother of Rh negative disorders.
A and B
Yes, if both the mother and the father are carriers of the recessive Rh negative trait, they can produce a child with O negative blood type. The child would inherit one Rh negative allele from each parent, resulting in a negative blood type.
No. Two negatives can't make a positive.
Yes, it is possible for two O positive individuals to have a child with A positive or A negative blood type. This is because each parent can pass on either an A or an O allele to their child, leading to a variety of blood type combinations in offspring.
Yes
two o positives
Yes, two B positives can produce an O positive child.
Yes
Yes
they can have a A positive A negative O positive O negative depending on genes of A
can two o positive blood types make an RH Negitive baby
yes I have o negative my husband has o positive; I have daughter with o negative and a son with o positive