BIOL 118 Lecture Notes - Lecture 16: Meiosis, Ras Subfamily, Caffeine
Document Summary
2n=4: diplois, 2 unique sets, long and short. Each pair lines up independent of another pair-law of independent assortment. Surface receptor is able to transduce and signal from the extracellular to the intracellular. Transduction:conversion of a signal from one form to another. Epinephrine binds to receptor in the membrane and there will be a transduction pathway. Amplification: takes a tiny signal and increases amount of the signal. Once on, the altered g-protein joins with a nearby enzyme. G protein is an adregic receptor shen g protein activated protein converts atp. Caffeine inhibits enzyme that breaks down camp. Presence of caffeine causes an increase in camp. Receptor tyrosine kinases=rtk"s(catalytic receptors):they involve an enzyme. Kinase can phosphorylate things, add phosphate groups.