Biology 2 Exam 2 UCF questions and answers

Biology 2 Exam 2 UCF questions |\ |\ |\ |\ |\ |\




and answers |\




Capsid - CORRECT ANSWERS ✔✔Outer shell of virus (protein coat)
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Capsomer - CORRECT ANSWERS ✔✔Functional unit of capsid (self-
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assemble to form capsid) |\ |\ |\




Helical - CORRECT ANSWERS ✔✔Viral structure where protein are
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stacked up to form a capsid and it covers RNA (ex.) tobacco
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mosaic virus
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Icosahedral - CORRECT ANSWERS ✔✔Viral structure where DNA is|\ |\ |\ |\ |\ |\ |\ |\ |\



protected because its inside the structure (ex.) adenoviruses
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Enveloped - CORRECT ANSWERS ✔✔Viral structure where
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envelope is derived from host membrane and the membrane
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envelope protects the RNA (ex.) influenza virus
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Complex - CORRECT ANSWERS ✔✔Virus structure where DNA
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material is protected by icosahedral head (ex.) Bacteriophage
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Baltimore - CORRECT ANSWERS ✔✔Classification of viruses based
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on genetic material viruses carry: either DNA or RNA, enveloped or
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noneveloped.
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, HIV virus - CORRECT ANSWERS ✔✔class 6 single stranded RNA
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that is a retrovirus
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transcriptase - CORRECT ANSWERS ✔✔reverse transcribes viral |\ |\ |\ |\ |\ |\ |\



RNA genome into DNA |\ |\ |\




integrase - CORRECT ANSWERS ✔✔randomly inserts new DNA into |\ |\ |\ |\ |\ |\ |\ |\



cell genome
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prions - CORRECT ANSWERS ✔✔misfolded proteins, convert
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normal proteins by physical contact |\ |\ |\ |\




viroids - CORRECT ANSWERS ✔✔RNA, small infectious molecules,
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no protein coat, do not make proteins, only infects higher plants
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and cause disease by interfering with gene transcription.
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Prokaryotes - CORRECT ANSWERS ✔✔Have no membrane |\ |\ |\ |\ |\ |\ |\



enclosed nucleus, no organelles, no mitosis or meiosis, and mostly
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asexual reproduction.
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Gram positive bacteria - CORRECT ANSWERS ✔✔The thick
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peptidoglycan layer traps the blue stain within the cell, staining |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



the cell blue
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Gram negative bacteria - CORRECT ANSWERS ✔✔The
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peptidoglycan layer is too thin to trap the blue stain, revealing the |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



red stain.|\