Answer:
Two dominant alleles aren't required for it to be expressed as the phenotype. however, two recessive alleles are necessary for the characteristic to be expressed as the phenotype
Brain structure that controls the autonomic nervous system is the hypothalamus of the brain. It is located on lower part of the top end of the brain stem. The hypothalamus specifically important for maintaining homeostasis, the proper balance of the body’s internal environment such as body temperature, blood sugar, breathing. Thus, the hypothalamus maintains homeostasis by controlling the autonomic nervous system.
They re called granum singular and grana plural
