Any two humans on earth, provided one is male and one is female, can marry, or mate, to create a child. Blood type does not affect fertility.
Yes, the O plus boy can marry an O negative girl though there will be a high risk of miscarriage.
of course.
Yes
Any blood type can marry any other blood type.
If a 32-year old male is in the AB plus blood group, he can marry a 35-year old female that is in the O blood group without having any problems in pregnancy.
o+o+o = o
why not...
you can marry anyone you want
you can marry anyone you want
No
yes
To say "Will you marry me?" in Igbo, you can say "O bukwa nkechinyere m?"