Imagine two heterozygous parents. each has a dominant allele x for brown eyes and a recessive allele x for blue eyes. the phenotypic ratio for brown: blue eyes in their children is

Apart of an ecosystem that can restrict the growth of a population is referred to as

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

Atype of organism that no longer exist on earth is said to be