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Unformatted text preview: Gametophyte = A haploid, multicellular individual that produces gametes by mitosis; these gametes fuse to form a diploid cell (a zygote) that develops into a sporophyte Spore = a single cell produced by mitosis or meiosis that is capable of developing into an adult organism (without fusing with another cell) III. Origins of mitochondria and chloroplasts A. Function of these two organelles Mitochondria produce ATP Chloroplast function is a little like a B. Endosymbiotic theory of origin Is the endosymbiosis hypothesis correct? Data Prediction Observation Size of organelles Number of membranes Genes present? Organelle replication Organelle chromosome structure Organelle genes most similar to ? Contemporary examples? Which type of evidence is most convincing, and why? Secondary endosymbiosis = acquisition of a chloroplast from a eukaryote that already has a chloroplast...
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