Adaptations result from interactions between organisms and their .
The Hardy-Weinberg principle states that in a population do not change unless outside factors affect the gene pool
For sickle-cell disease assume S is the dominant allele and s the recessive allele Which genotypes are possible for offspring of a carrier (Ss) and a person who lacks the sickle-cell allele (SS)
According to the theory of today and acirc and 128 and 153s organisms evolved from past organisms.
