BIO 202 Lecture Notes - Lecture 11: Accessory Pigment, Fucus, Chlorophyll
Document Summary
Plant bio week of jan 11, 13 & 14. Review from last class important to know how to map characters onto a tree. Green eyes are not included in the group of red-eyed organisms; therefore it is a paraphyletic taxon. Each character type defines a kind of taxa. Sequence of morphological & cytological phases of an organism that represents its genetic potential. The zygote remains in a resting phase until conditions are right, then it undergoes meiosis to become 1n then replicates through mitosis. Note: mitosis is nuclear division, cytokinesis is cell division. One is not always paired with the other. Zygotic life history zygote only diploid cell. Syngamy fusion of egg & sperm (gametes) Gametic life history gametes are the only haploid cells. Sporic life history two independent vegetative phases, one haploid, one diploid. Consequence mitosis results in more vegetative cells (growth) or gamete produc- Isomorphic the sporophyte and gametophyte forms are the same.
