MMSC490 Exam 1 (with Errorless Answers)

The simplicity and clarity of Caenorhabditis elegans allowed researchers to correct answers Identify the genes in differentiation of each cell type The diffraction limited resolving power of a standard light microscope is approximately correct answers 0.2 Om Chloroplasts are thought to have originated from endosymbiosis of ___ by large host cell. correct answers Photosynthetic eubacteria such as cyanobacteria The eukaryotic nucleus contains ___ DNA molecule (s). correct answers Multiple linear The source of the atmospheric oxygen necessary for the development of oxidative metabolism is thought to have been correct answers Photosynthesis Living cells are commonly visualized by means of ___ microscopy correct answers Phase-contrast Mitochondria and chloroplasts resemble bacteria in that they correct answers - Have their own DNA - Have their own ribosomes - Reproduce by simple division into two Which of the following is not a unicellular eukaryote? - archaebacteria - saccharomyces cerevisiae - paramecium - chlamydomonas correct answers archaebacteria An E. coli cell under well-defined laboratory conditions divides about every correct answers 20 minutes The diffraction limited resolution of a standard light microscope is determined by which of the following equations? correct answers R= 0.61 (λ)/(NA) The initial importance of a membrane enclosing self-replicating RNA molecule and associated proteins was that it correct answers Maintained these molecules as a unit capable of reproduction and evolution Studies on which model experimental organism led to the initial discovery of important mechanisms controlling the development of the animal body plan? correct answers Drosophila melanogaster Which of the following are the most commonly used for mammals for genetic studies? correct answers Mice