PSY100H1 Chapter Notes - Chapter 3: Myelin, Efferent Nerve Fiber, Axon Terminal
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PSY100H1 Full Course Notes
Verified Note
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Document Summary
The environment we are raised in affects how certain genes are expressed (turned on or off) (82) Within every cell there is a genome (blueprint) to make the entire organism, and whether a cell becomes thing x or thing y is determined by which genes are turned on or off in that cell (83) Within each cell are chromosomes, which are structures within the cell body made up of genes (83) The sequence of molecules along dna strands found in genes is an exact instruction to manufacture a specific protein (83) Proteins are the basic chemicals that make up the structure of cells and direct their activities (83) Genes are segments of dna involved in producing a protein which carries out a specific task (83) The way cells develop is influenced by their environment, since each cell contains the same dna (83)
