Biology 151

BIOLOGY 151

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Examen

BIO 151 - Exam 2 Questions And Answers
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18

junio 2025

2024/2025

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Which of the following are purine nitrogenous bases? - ANS guanine and adenine If cells are grown in a medium containing radioactive 32P-labeled phosphate, which of these molecules will be labeled? - ANS nucleic acids What is the difference (if any) between the structure of ATP and the structure of the precursor of the A nucleotide in RNA? - ANS There is no difference. When nucleotides polymerize to form a nucleic acid ________. - ANS a covalent bond form...
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Examen

Bio 151 Exam 2: Learning Objectives Questions With Complete Solutions!!!
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16

junio 2025

2024/2025

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Explain why misconceptions about the nature of life, such as the theories of spontaneous generation or preformation, slowed our understanding of heredity and genetics. - ANS SPONTANEOUS GENERATION - the idea that new life had to come from old life, so life was spontaneously produced from non-living substances - ex: maggots came from dead meat, flies came from fruit - disproved by Redi when he covered a Petri dish filled with mean with a cloth and he left one exposed to the open air; f...
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Examen

Bio 151 Exam 2 Questions And Answers
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12

junio 2025

2024/2025

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light microscope (LM) - ANS Visibke light is passed through a speciman and then through glass lenses Magnification - ANS The ratio of an objects image size to its real size Resolution - ANS The measure of the clarity of the image, or the minimum distance of two distinguishable points Contrast - ANS Visible differences in brightness between parts of the sample electron microscope (EM) - ANS Used to study sub cellular structures Scanning elect...
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Examen

Bio 151 Exam 2 Questions And Answers
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12

junio 2025

2024/2025

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theory of natural selection - ANS Idea, first proposed by Charles Darwin, that species survive due to favorable characteristics cell doctrine - ANS 1. all living things are composed of cells and cell products 2. a single cell is the smallest unit that exhibits all the characteristics of life 3. all cells come only from preexisting cells protein primary sequence - ANS the sequence of amino acids linked by polypeptide bonds that go into determining a protein's fu...
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Examen

Bio 151 Exam 2 NKU Questions And Answers
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12

junio 2025

2024/2025

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General features of fungi - ANS -Heterotrophic -polysaccharide cell walls with chitin -external digestion -hyphae -some are unicellular (yeast) Hyphae - ANS each of the branching filaments that make up the mycelium of a fungus. Mycelium - ANS mass of hyphae Chytridiomycota - ANS -aquatic, flagellated fungi -sexual gametes and asexual spores are motile fungal asexual reproduction - ANS spores are formed through budding or mitosis; conidia o...
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Examen

Bio 151 exam 2, Seth Blair, 2025 Questions And Answers
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10

junio 2025

2024/2025

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natural selection - ANS A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits. cell doctrine - ANS All living things are composed of cells A single cell is the smallest unit that exhibits all of the characteristics of life All cells come only from preexisting cells primary protein sequence - ANS the linear sequence of amino acids nucleic acid sequence - ANS ...
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Examen

Bio 151 exam 2 Questions And Answers 100% Correct Answers !!!
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9

junio 2025

2024/2025

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Anaerobic respiration: glucose oxidized - ANS energy and byproducts. Glycolysis mechanism - ANS 6 carbon glucose-> 2 pyruvate molecule (3 carbon molecules). Net of ATP and 2 NADH, NADP+ will pick up electrons which will shuttle it to electron chain, NADH shuttling electrons from one place to another, taking electrons from glucose molecule and taking them to electron transport chain. Where does glycolysis occur and does it need oxygen? - ANS in the cytosol, no it ...
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Examen

Bio 151, Exam 2 Big Concepts, Yahn&Blair, UW Madison, 2025
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9

junio 2025

2024/2025

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Gene Expression - ANS controlling what proteins to make or skip Prokaryotic gene expression - ANS should we make mRNA or not(simple) Eukaryotic gene expression - ANS many steps to control; transcribe rna; exit nucleus; transport mRNA to ribosome; etc. Promoter - ANS specific nucleotides that are recognized and bound by proteins transcription factors - ANS Collection of proteins that mediate the binding of RNA polymerase and the initiation of tr...
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Examen

Bio 151 exam 2, Seth Blair, 2025-2026 Questions And Answers
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10

junio 2025

2024/2025

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Alternate splicing does which of the following - ANS Allows partly different proteins to be translated from a single transcript In analyzing the number of different bases in a single-stranded messenger RNA, which rule is correct A + U = G + C A + T = C + U None of the other answers are correct. A = G - ANS None of the other answers are correct The role of snRNA is to - ANS help splice out introns from DNA Why does DNA replication require the enzyme primase -...
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Examen

Bio 151 Exam 2 Practice test Questions And Answers
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9

junio 2025

2024/2025

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1. Why are viruses referred to as obligate parasites? A. They cannot reproduce outside of a host cell. B. Viral DNA always inserts itself into host DNA. C. They invariably kill any cell they infect. D. They can incorporate nucleic acids from other viruses. E. They must use enzymes encoded by the virus itself. - ANS A 2. What is the name given to viruses that are single-stranded RNA that acts as a template for DNA synthesis? A. retroviruses B. proviruses C. viroids D. bacteri...
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