Flower color in primrose plants is controlled by an individual gene. The sudden appearance of one white flowering primrose in a plant breeder's field of red primrose plants is most likely due to mutation. <span>A mutation represents the permanent alteration of the nucleotide sequence of the genome of an organism in this case DNA of the plant. Mutation can potentially lead to the inactivation of some enzyme involved in the biosynthetic pathway of the pigment.</span>
"Command Center for the Endocrine System", the <u>hypothalamus</u> is a major link between the nervous and endocrine system as it is a major regulatory center in the nervous system, as well as a crucial endocrine gland that can synthesize at least nine different hormones.
