A member asked:

If my blood is o- and my son is the same, what possible blood types would my husband be?

4 doctors weighed in across 2 answers

The father...: The father of the child could be o-, o+, a-, a+, b-, or b+.

Answered 2/11/2014

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O negative: Since being blood type o and being rh negative are both recessive traits, your son would need to inherit the same genes from both you and your husband in order to be o negative, so your husband must also have o negative type blood.

Answered 4/8/2016

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