MMSC490 Exam 1 Questions and Answers | Verified & Updated
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MMSC 490
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MMSC 490
MMSC490 Exam 1 Questions and Answers |
Verified & Updated
The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of..... in
eukaryotic cells - Answer ️️ -a nucleus
Cytoplasmic organelles are - Answer ️️ -absent in prokaryotic cells and present in eukaryo...
MMSC490 Exam 1 Questions and Answers | Verified & Updated The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of..... in eukaryotic cells - Answer ✔️✔️-a nucleus Cytoplasmic organelles are - Answer ✔️✔️-absent in prokaryotic cells and present in eukaryotic cells The eukaryotic nucleus contains.... DNA molecules - Answer ✔️✔️-multiple linear Stanley miller applied elect ric sparks to a reducing atmosphere of methane, ammonia, water, hydrogen, and the resulting products showed that under these conditions - Answer ✔️✔️-amino acids can form Which energy -producing process is thought to have come first during cellular evoluti on? - Answer ✔️✔️-glycolysis At the time life arose on Earth, Earth's atmosphere contained abundant amounts of all of the following except - Answer ✔️✔️-O2 CO2 to organic compounds radically changed Earth by producing - Answer ✔️✔️-O2 RNA is believed to have been the initial genetic system because it can - Answer ✔️✔️-catalyze the polymerization of nucleotides into another RNA strand The initial importance of a membrane enclosing self -replicating RNA molecules and associated proteins w as that it - Answer ✔️✔️-maintained these molecules as a unit capable of reproduction and evolution The bacterial genome is located in a portion of the cell called the - Answer ✔️✔️-nucleoid Eukaryotic cell nuclei contain genes that are - Answer ✔️✔️-partly archaebacterial and partly bacterial in origin Organelles such as mitochondria and chloroplasts are thought to have originated in eukaryotic cells via a process called - Answer ✔️✔️-endosymbiosis Mitochondria and chloroplasts resemble bacteria in tha t they - Answer ✔️✔️-Have their own ribosomes Have their own DNA Reproduce by simple division into two Which of the following is a colonial organism closely related to the evolutionary precursors of present -day plants? - Answer ✔️✔️-Volvox Which of the f ollowing are the most commonly used mammals for genetic studies - Answer ✔️✔️-Mice In fluorescence microscopy, the immediate source of the light detected is light that has been.... the sample - Answer ✔️✔️-emitted by Which of the following is a high -resolution light microscope technique for detecting interactions between proteins? - Answer ✔️✔️-FRET (fluorescence resonance energy transfer) How many genes does the haploid yeast nuclear genome contain? - Answer ✔️✔️-6,000 The adult nematode worm Caenorhab ditis elegans consists of .......... somatic cells. - Answer ✔️✔️-959 The simplicity and clarity of Caenorhabditis elegans allowed researchers to - Answer ✔️✔️-Trace the developmental lineages of all cells in the adult Drosophila melanogaster was an orga nism of choice for the study of - Answer ✔️✔️-mammalian genetics
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