Epigenetics ANS✔✔ Pups that receive more licks and grooming as pups are
less responsive to stress
- more glucocorticoid receptors and can shut off their stress response more
easily
-Hypothalamus -> Pituitary -> Adrenals -> glucocorticoid to Hypothalamus
-LG removes the methyl group -> increased expression of the glucocorticoid
receptor
Visual Deprivation in cats (experience affects brain) ANS✔✔ Depriving one
eye of sight causes significant change in structure and function of visual
cortex
-most neurons will respond to both eyes, when one is sealed, neurons
switch to responding to working eye
-neurons never go back to normal even after opening eye
Modern synthesis of evolution ANS✔✔ Fusion of Darwin's theory of evolution
by natural selection and Mendel's laws of discrete inheritance
Genes ANS✔✔ Specific DNA sequence embedded in chromosome that
specifies structure of proteins
Genotype ANS✔✔ genetic makeup of organism
Phenotype ANS✔✔ physical appearance of organism
Cell Differentiation ANS✔✔ process by which individual cells in a developing
metazoan become different from one another
Lineage ANS✔✔ First mechanism of cellular differentiation
Mitotic lineage ANS✔✔ a strict order of cell divisions that happen about the
same way in every individual worm
-can predict what a cell will become
-each fell's fate is determined by mitotic lineage
Embryonic Development ANS✔✔ Three distinct germ layers
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