The blood group of sam’s father is a+ and that of his mother is b+. however, sam’s blood group is ab+. what is the correct explanation for this?

Explanation:

AB blood group system in humans is determined gene I. This gene has two alleles IA IB. In heterozygous condition, both these alleles both the alleles express completely resulting in a new phenotype. This is called co-dominance and because in this both the alleles are expressed. Thus, in the given question, Sam is with blood group AB⁺ is due to co-dominance because both the alleles A⁺ and B⁺ are codominant with each other.

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

hello, ballerbaby1265. i would say that the child has had a concussion due to the fall and their symptoms. 60 beats per minute is normal in a child that is sleeping, but not while awake. two of the main symptoms of a concussion after are both sleepiness and being tired. i hope i have a great night.