111909CAP - 111909CAP what is the order of endocrine...

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111909CAP what is the order of endocrine chemical signaling evolution and why? -paracrine, endocrine, neuronal neural hormones which sex is typically more choosy in terms of reproduction?-female why? -because females invest more energy in sexual reproduction by female vertebrates vs more male vertebrates -seahorses, frogs, some fish are exceptions to the rule -what’s in common?-external fertilization, males take care of young 6 carbon rings with 3 double bonds (benzenes)- w/ hydroxyl group (phenol) -this is the similarity btwn hormones -how do hormones and neurotransmitters and paracrines or autocrine signals work? -generally at cellular-molecular level -what is common to all of them? -bind to receptors (receptor site that matches the shape of hormone/transmitter/paracrine/autocrine) -general generation determination of sex: -XX vs. XY -switching gene on Y chromosome that needs to be present to create mammalian male -but not enough to determine phenotypic gender determination -variety of studies in which primarily in rats/mice, large doses of testosterone or estrogen
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This note was uploaded on 02/19/2010 for the course BIO 361T taught by Professor Bittner during the Spring '08 term at University of Texas at Austin.

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111909CAP - 111909CAP what is the order of endocrine...

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