Can one parent with negative blood type have a child with a positive blood type? how does it work?

Yes, absolutely, it is very common.

My husband has type O- blood, and I have type B+ blood. Two of our daughters have type B+.

Yes. The other parent has positive blood type, assuming we are talking about Rh negative and positive.

It would be more informative if you said positive (or negative) for what. I shall infer you are speaking about the Rhesus blood system. The parent who is Rhesus negative has the genotype Rh(d)Rh(d). The parent who is Rhesus positive may have the genotype Rh(D)Rh(D) or Rh(D)Rh(d). The Rhesus negative parent may only give their child an Rh(d) allele. The allele donated by the Rhesus positive parent depends on her/his genotype. If he/she is Rh(D)Rh(D) he/she may only donate an Rh(D) allele. If her/his genotype is Rh(D)Rh(d) he/she can donate an Rh(D) allele or an Rh(d) one. If the child receives an Rh(D) allele from the Rhesus positive parent the child will have the genotype Rh(D)Rh(d) and the child will be Rhesus positive.

I think so

Sure can!! I'm not sure how old you are, but you will learn this in your freshman biology class (or maybe sooner now). It depends on your parent's blood types to determine what blood type you could get. My mom is A-, my dad is A+, my sister is O-, I am A- and my brother is A+.

Also, a fun fact: It helps to know your blood type, especially when it comes to having kids. If the female has a negative blood type it's dangerous for the father to be positive as it can create anti-bodies and attack the baby. My mom's blood was killing all of us because of the mixture of blood. We are all just fine and were 100% healthy babies, so it's not impossible, just scary!

Blood types are names given to enzymes in the body found in the blood. it don't know if +1 blood type I don't believe so and I don't remember if - or + is dominate that can be googled but you can have AA AO AB BB BO positive or negative God forbide if you have a surprise meeting with the boss the day you were in a rush and forgot your deoderant