BIOL108 Lecture Notes - Lecture 2: Sickle-Cell Disease, Anemia, Apicomplexan Life Cycle

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL108
• Professor: Richard Moses

Document Summary

Sexual life cycles in eukaryotes: 3 main life cycles. Protists exhibit all of them: different ploidy spaces and different dominance in different spaces, diploid dominant in life cycle 1, most of the division asexual. Ancestral life cycle (dominated by haploids), (many protists, all fungi): multicellular stage (or dominant stage in unicellular guys species) is diploid. Ea(cid:272)h z(cid:455)gote does(cid:374)"t (cid:374)e(cid:272)essaril(cid:455) produ(cid:272)e (cid:373)ore tha(cid:374) o(cid:374)e orga(cid:374)ism (4 or less), but depends on organism. Name of this life cycle: haplontic or zygotic meiosis. Chlamydomonas (unicellular green algae) life cycle is haplontic, can switch between se(cid:454)ual a(cid:374)d ase(cid:454)ual, (cid:373)ostl(cid:455) haploid a(cid:374)d ase(cid:454)ual, does(cid:374)"t sa(cid:455) (cid:373)ale or fe(cid:373)ale (cid:271)ecause they are phenotypically identical so just call them (+, -), isogamy. Isogamous- ancestral condition for gametes in eukaryotic world. Mosquito bite, anti-coagulant by mosquito salivary glands, human coagulant to clot blood, sporozoites in saliva of mosquito. Produce merozoite with small piercing needle and invade rbc by rupturing them, massive mitotic division in.