GENE 320 Lecture Notes - Lecture 8: Xist (Gene), Interphase, Xite Music
Document Summary
Primary sexual differentiation involves only gonads where gametes are produced. Secondary sexual differentiation involves the overall apperance of organism. Bisexual, monoecious, hermaphroditic have both male and female reproductive organs common in plants and animals can produce egg and sperm. Eggs are fertilized by stored sperm vast majority are hermaphrodites but some males are produced to mate with the hermaphrodites. When males and hermaphrodites mate the cross mating will result in 50/50. Producing like chromosomes zygotes with two x chromosomes results in female offspring. Zygotes with one x and one y chromosome. *the sex determining chromosomes are different depending on what species you are looking at. looking at. Failure of x chromosomes to segregate during meiosis. Tall w/ large hands and feet internal ducts are male, rudimentary testes fail to produce sperm. Feminine development not suppressed enlarged breasts common, rounded hips.
