Answer:
The involvement of more than two genes.
Explanation:
The polygenic characteristics have many phenotypes because more than two genes governs the phenotype of individual organism. The single gene contains a pair of alleles that codes for two phenotype and two genes will code for 4 phenotype. Thus, more than two genes for example, three genes will have six phenotypes.
The skin color and height are polygenic characterstics in humans.
Genetic counselors typically receive a bachelor's degree in biology, social science or a related field, and then go on to receive specialized training, so I would say your answer would be B.) must have a degree in biology or genetics. I hope this helps!
Prokaryotic cells are cells that can function independently. They consist of everything needed for that cell to nourish itself and to grow and reproduce.
Proteins are made up of a chain of 20 amino acids
