Bio 211 Exam 4 Test Questions and Complete Solutions

Which virus lineage is most diverse (i.e. contains the largest number of putative species or strains)? a) Positive-sense, single-stranded RNA viruses b) Double-stranded DNA viruses c) Double-stranded RNA viruses d) Negative-sense, single-stranded RNA viruses c) Double-stranded RNA viruses Which of the following flower structures are considered female? a) Stamen b) Style c) filament d) anther e) Ovary f) Stigma g) sepal b) Style e) Ovary f) Stigma Which of the following is one of the two most urgent tasks that public officials first undertake to prevent an outbreak from becoming an epidemic? a) Devise a way to halt transmission of the disease b) Identify the causative agent c) Determine the number of individuals who will most likely be infected before the outbreak subsides d) Determine a medical treatment b) Identify the causative agent Which one of the following is a characteristic of RNA viruses? a) Small genome b) Slow evolution c) Large genome d) Slow replication a) Small genome The virus genome and viral proteins are assembled in virions (virus particles) during ________. a) the lytic cycle in all host organisms but the lysogenic cycle only in bacteria b) the lytic cycle only c) the lytic cycle and the lysogenic cycle in all known host organisms d) the lysogenetic cycle only b) the lytic cycle only