No need to explain pleas only answer. thank you _____40. All of the following are considered...

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Biology

No need to explain pleas only answer. thank you
___40. All of the following are considered in classifyingviruses except its
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. nucleic acidcompositionÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. capsid architecture
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. ability to grow in embryonatedeggsÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. replication strategy
_41. Which one of the following does not occur in thelysogenic life cycle of bacteriophage
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â provided the virus remains temperate?
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. phageinsertionÂ Â Â Â Â Â Â Â Â Â Â Â B.penetrationÂ Â Â Â Â Â Â Â Â Â Â Â C. celllysisÂ Â Â Â Â Â Â Â Â Â Â Â Â D. attachmentÂ Â
_42. Which one of the following viruses is an RNA virus?
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A.herpessimplexÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B.rabiesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C.smallpoxÂ Â Â Â Â Â Â Â Â Â Â Â Â Â D. papilloma
_43. All the following are associated with retrovirusesexcept
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. reversetranscriptaseÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B.provirusÂ Â Â Â Â Â Â Â Â Â
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. double stranded DNAgenomeÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. oncogenicÂ Â Â
Â Â Â
_44. All the following represent specific mechanisms of bodydefense except
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. complementÂ Â Â Â Â Â Â Â Â Â Â Â Â Â B. memory TcellsÂ Â Â Â Â Â Â Â Â Â Â Â Â C.IgMÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. ADCCÂ Â
_45. Innate immunity is associated with
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. specific responseÂ Â Â Â Â Â B. memoryresponseÂ Â Â Â Â C. slowresponseÂ Â Â Â Â D. fibrin
_46. Which one of the following is a function of adaptiveimmunity?
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. antigen presentingcellsÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. fever
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C.inflammationÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. natural killer cells
_47. In birds the precursors of B cells arise from stemcells located in the _
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â and migrate to the _ where they are educated to becomeB cells.
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. red bone marrow; bursa ofFabriciusÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. red bone marrow; thymusÂ Â Â Â Â Â
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. liver; lymphnodesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. liver; spleen
_48. The monomer of all antibody molecules has
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A. two constant chains and two variable chains
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. two heavy chains with constant regions that act as antigenbinding sites
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. four chains with constant regions that act as antigen bindingsites
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. two binding sites
___49. The antibody that is usually the second to respond toan antigen is
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A.IgGÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B.IgAÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C.IgEÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. IgM

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ANSWER 40C ability to grow in embryonated eggs EXPLANATION Viruses are mainly classified by phenotypic characteristics such as morphology nucleic acid type mode of replication host organisms and the type of disease they cause ANSWER 41 C cell lysis EXPLANATION phage usually follows one of two life cycles lytic virulent or lysogenic temperate Lytic phages take over the machinery of the cell to make phage components They then destroy or lyse the cell releasing new phage particles Lysogenic phages incorporate their nucleic acid into the chromosome of the host cell and replicate with it as a unit without destroying the cell Under certain conditions See Answer

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