ANT100Y1 Lecture Notes - Lecture 6: Sequential Hermaphroditism, Herd Immunity, Antimicrobial Resistance
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ANT100Y1 Full Course Notes
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Ant 100 lecture 6, evo anthro lecture 6, arch lecture 1. Biological sex is a function of anatomy: xy, xx, trisomy (xxx,xxy,xyy), pentasomy, all kinds of (fun) internal and external parts. *oscalans (clownfish)- sequential hermaphroditism, changes sex at some point in life. Xy sex determination system: carry x, carry y, a single gene (sry: sex determining region y) Zw sex determination (primarily birds: ovum determines sex of offspring, males (zz) females (zw) X0 sex determination (many insects: only one sex chromosome, male, only one x, female xx. Temperature dependent sex determination: temperature sensitive period (tsp), period during development when sex is irreversibly determined. Infectious disease: microbial agent, death rates by infections disease b/w developed and developing world, pandemics, co-evolution of humans and pathogens. Antibiotics: drug used in treatment and prevention of bacterial infections, revolutionized medicine in the 20th century, near eradication of some disease. Helped keep women alive after giving birth: antimicrobial resistance (amr) threatens effective prevention.
