BIOL 1030 Lecture Notes - Lecture 6: Oocyte, Spermatogenesis, Morphogenesis

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BIOL 1030 Full Course Notes
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Bio 1030 lecture 6 - animal reproduction, development, form and function. Budding: offspring grows off of you, both male and females can do, no gametes fission, 1 animal splits into 2 animals (like a cell splitting, no gametes sex of animal doesn"t matter. Dioecious (2 houses) species female individuals that produce eggs: male individuals that produce sperms. Sequential hermaphrodites ex. clownfish: all clownfish are male first start life as one sex, develop into the other sex later in life. Protandry (male to female) the clown fish. Gametogenesis (formation of gametes) spermatogenesis (male sperm)/oogenesis (female - egg) Meiosis - gamete formation: primordial germ (stem) cell (doesn"t divide my meiosis, __gonium, primary __cyte, secondary__cyte, __tid, gamete. Divides by mitosis to produce daughter cells: males: primary spermatocyte, females: primary oocyte. Divides by meiosis i (2 cells: males: secondary spermatocyte, females: secondary oocyte. Divides into 4 daughter cells by meiosis ii: males: spermatids sperm, females: ootids very little maturation to become ovum.

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