>Hello!
>Here is a hopefully easy question for someone out there:
>I would like to know what are the possible blood types of a child
>of parents who are A+ and A- ? Very Important! Thanks for your response.
The child can be either type A if one or both parents are homozygous A
OR s/he can be O (25% chance) if both parents are heterozygous A...
(I tried to do a diagram but its hard to understand in ASCII)
Type O would be the least likely with no further info on the parents.
The rhesus factor of the child may be + or - again depending on
whether the parents were homozygous or heterozygous:
>Actually- here's another: When bllod typing is used (or was before DNA testing
>?) in paternity suits-are they checking this A+,B,O-etc or is it
>something else? Can blood type be used for that purpose?
Yes, the ABO and rhesus are used for blood typing/paternity, although
there has been a trend towoards DNA fingerprinting, this technique
has gotten itself a bad name in the courts (in the US). Pity. Blood typing can
NOT prove paternity but CAN eliminate a suspect father/criminal; DNA
fingerprinting is much more incriminating. There are other blood types
used too, the MN phenotypes spring to mind.
I hope this helped,
Regards
Dracula
