This math doesn't make any sense to me. I figured this would be a neat discussion to have. O blood type is recessive. Meaning if a Mother has O+ blood and the Father has B+ blood, the child will have B+ blood. However, O+ is the most common blood type, with 37% of the population having O+. How does this happen if O is recessive? For example, Green eyes are also a recessive trait, and they only account for 2% of the world's eyes. How does O blood type not match this same pattern?
I’d safely assume that this is due to a homogeneity of O+ Blood type in certain populations and regions. If you and your spouse have the same O+ blood type, it will be passed on to any children you have, regardless of if it’s recessive. Same reason that certain recessive traits are common in specific populations, a concentration of a trait in a specific population will continue to propitiate it regardless of recessive tendencies.
I’m not only left handed, but also AB positive. On the plus side, I’m a universal recipient and can get blood from any other blood type. IIRC type O is a universal donor. I didn’t know there was such a thing as red eyes, but I have known someone that had Grey eyes.
Hmm I've never studied blood types, beyond general health class. All I know is that I'm A+, my ex is O-, and our boys are a reverse combo. One is A-, the other is O+.
blood is multiple gene trait. there are genes for A, B, and O - each person carries 2 in 6 combinations. (AA, AO, BB, BO, AB, OO) There is also a gene that determines RH+ & RH- which complicates the total number of possible blood types. type A can be AA or AO type B can be BB or BO type AB can only be AB type O can only be OO each parent donates 1 blood type gene so 2 type A people can make Type AA, AO, or OO 2 type B people can make type BB, BO, or OO an A and a B can make AO, BO, AB, or OO A and AB can make AA, BO, or AB B and AB can make AO, BB, or AB AB & AB can make AA, BB, or AB AB and O make AO or BO O & O make O RH+ and RH- are why they used to blood type everyone prior to issuing a marriage license, because mixing +/- blood types can endanger both the child and the mother, especially on the second child. Fortunately, there are meds now that help an RH- mother survive carrying an RH+ baby.
dad's an A mom's a B elder sib is A younger sib is AB I'm O and we're all left handed (another recessive trait)