Answer:
The answer is B.
Explanation:
Regarding the situation explained in the question that "African Americans are not affected by the malaria disease because of a specific genetic trait that they possess and that trait provides them with protection" can be explained by the answer given in option B.
Being heterozygous, meaning possessing a dominant and a recessive allele regarding that genetic trait, in terms of sickle cell trait which is a gene that causes the individual's blood cells to be sickle shaped and balanced polymorphism which means carrying two different versions of a gene is an argument that is enough to prove that the above statement is incorrect because it means they have blood cells that can be affected by the malaria disease.
I hope this answer helps.
Mother genotype is IAi (heterozygous)
Explanation:
Man is Rh negative and O type blood group its genotype is OrOr
Mother is A positive so her genotype would be either IAIA or IAi
Also A blood group is dominant over O blood group.
It is given:
two children are A POSITIVE
One child is A negative
so the mother must have been heterozygous with genotype IAi as one of the child would have recieved it from mother as it is a dominant trait.
Punnete square shows
AI Ai
i AIi Aii
i AIi Aii 50 percent chances of A negative child is there.
Being the same just adjusted to a students ability
Kinetic energy is referred to the energy associated with movement and or motion, thus the only object that is moving would be A boat sailing across the ocean.
