Biod 171 Exam 6 questions with correct answers

Biod 171 Exam 6 questions with correct answers True or False . Although viruses may contain their genome within an enclosed space ( much like the nucleus of a cell ) , it is considered neither eukaryotic nor prokaryotic . - CORRECT ANS-True Describe the two basic components of a virus . - CORRECT ANS-A has virus ( 1 ) genomic material comprised of either DNA or RNA and ( 2 ) a capsid , a membrane - like protective structure that contains the genetic material , similar to the nucleus of a eukaryotic cell . True or False . Because the genome is contained within an enclosed space ( much like the nucleus of a cell ) , viruses classified as eukaryotic . - CORRECT ANS-False The envelope surrounds the ________ of some viruses . - CORRECT ANS-capsid True or False . You would expect to see a viral envelope on a virus infecting a plant cell . - CORRECT ANS-False The __________ surrounds the capsid of some viruses . - CORRECT ANS-envelope Rank the following viruses based on their size from largest to smallest : Orthomyxovirus, Poliovirus, Variolavirus - CORRECT ANS-Variolavirus, Orthomyxovirus, Poliovirus True or False : Highly infectious viruses undergo genome replication prior to viral attachment and entry . - CORRECT ANS-False True or False : Viral replication occurs after it attaches and enters the host cell . - CORRECT ANS-True Place the following viral life cycle steps in order beginning with viral attachment and provide a description of each step . Uncoating : Release : Replication : Attachment : Entry : New infection : - CORRECT ANS-1. viral attachment : viral receptors bind to the host proteins on surface of cell 2. entry : the virus fuses with host membrane 3. uncoating : the viral capsid disassembles 4. replication : viral genome makes copies of itself 5. release : new virus particles are produced and leave the cell 6. new infection : newly produced viruses leave the host cell and infect new cells A virus that infects bacteria is called a [ answer1 ] and contains a [ answer2 ] -sided polygon capsid . - CORRECT ANS-1. Bacteriophage 2. 20 True or False . Structurally , bacteriophages are similar to viruses that infect ANIMALS . - CORRECT ANS-False True or False . Structurally , bacteriophages are distinct from viruses that infect plant or animal cells . - CORRECT ANS-True Describe the main differences between lytic and temperate phages . - CORRECT ANS-Lytic bacteriophages replicate within the host bacteria cell until it reputures Temporate phages exist in a non - replicative state that does not kill host cell Which of the following can be spread via airborne particles : - CORRECT ANS-All of the above