MMSC490 Quiz 1 (with 100% correct solutions)

The feature that most clearly separates eukaryotes from prokaryotes is the presence of _______ in eukaryotic cells. correct answers a nucleus The original cell was thought to have arisen from the enclosure of self-replicating _______ by a phospholipid membrane. correct answers RNA The source of the atmospheric oxygen necessary for the development of oxidative metabolism is thought to have been correct answers photosynthesis Chloroplasts are thought to have originated from endosymbiosis of _______ by a large host cell. correct answers photosynthetic eubacteria such as cyanobacteria The genome of eukaryotes consists of genes derived from correct answers both archaebacteria and bacteria. Which of the following is not a unicellular eukaryote? A) Saccharomyces cerevisiae B) Paramecium C) Archaebacteria D) Chlamydomonas correct answers C) Archaebacteria Solid tissues in animals include epithelial tissue, _______ tissue, nervous tissue, and muscle. correct answers connective How many genes does an E. coli have? correct answers 4,300 An E. coli cell under well-defined laboratory conditions divides about every __________. correct answers 20 minutes.