Virus Crossword

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Author:
jess03
ID:
42973
Filename:
Virus Crossword
Updated:
2010-10-18 21:06:21
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Microbiology Section
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Micro
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  1. The changing of normal cells into neoplastic (cancerous) cells
    Transformation
  2. The flexible membrane surrounding the capsid of some viruses
    Envelope
  3. DNA viruses are assembled in this area of the host cell
    Nucleus
  4. The phase of viral replication in which the viral capsid is dissolved releasing the core.
    Uncoating
  5. The phase of viral replication in which the vius enters the host cell.
    Penetration
  6. The protein coat surrounding the viral nucleic acid
    Capsid
  7. the antigentic drift occuring in some viruses is responsible for repeated _______
    epidemics
  8. Bacteriophage DNA that is permanetly incorporated into the DNA of a bacterial cell
    Prophage
  9. Glycoproteins occurring on the capsid or envelope that function in the attachment of the cirus to the host cell membrane
    Spikes
  10. The nucleic acid in viruses is called the ________
    Core
  11. A culture medium for viruses
    Eggs
  12. Changes in viral structure due to frequent spontaneous mutations
    Antigentic Drift
  13. Organisms (ie:viruses) that are unable to multiply outside a host cell
    Intracellular Parasites
  14. In order for adsorption to occur the viral spikes must be _________ to the receptor sites on the host cell
    Complementary
  15. Viruses must obtain this from the host cell.
    Energy
  16. The movement of neoplastic cells from one part of the body to another resulting in the formation of a secondary tumor.
    Metastasis
  17. The viral core may consist of DNA or ______
    RNA
  18. A virus that infects bacterial cells
    Bacteriophage
  19. The process during which viruses acquire their envelope
    Budding
  20. The phage of viral replication in which mature virus particles leave the host cell
    Release
  21. A cancer causing gene
    Oncogene
  22. RNA virus capable of transcribing their RNA into DNA in the host cell's cytoplasm
    Retroviruses
  23. The bacteriophage is an example of a _______ shaped virus.
    Complex
  24. The condition that occurs when a provirus becomes permantely incorporated in the host cells DNA remains dormant and is inherited by all daughter cells
    Lysogeny
  25. The helical shaped, hollow structure that is part of a bacteriophage
    Tail
  26. Granules occurring in the cytoplasm or nucleus of a viral infected host cell at the site of viral replication
    Inclusion Bodies
  27. The accumulation of abnormal or transformed cellse
    Tumor
  28. In order to infect a bacterial cell the tail of the bacteriophage must attach to the _______ _________
    Cell Wall
  29. The enzyme produced by the retoviruses
    Reverse Transcription
  30. Viruses are measured in this unit
    Nanometers
  31. Method of release for bacterial viruses and some animal viruses
    Lysis
  32. Subunits of the capsid
    Capsomers
  33. Capsomers are formed of chains of identical ______ _______
    Amino Acids
  34. Viruses that lack an envelope are called ________ viruses
    Naked
  35. Condition that occurs when a prophage is expressed giving the bacterial cell a new, different property (the ability to produce disease)
    Lysogenic Conversion
  36. a culture medium for viruses consisting of viable animal cells.
    Tissue Cultures
  37. A coiled or corkscrew shaped virus
    Helical
  38. Viral DNA that has become permanently incorporated into the DNA of a host cell is called a _________
    provirus
  39. Infections that occur as a result of repeated activation of a lysogenic provius which enters the lytic cycle
    Recurrent
  40. Viable viruses that are weakened unable to produce disease
    Attenuated
  41. Condition that occurs when viruses cross the placenta and infected the fetus
    Teratogenesis
  42. RNA viruses are replicated and assembled in this are of the host cell
    Cytoplasm
  43. The phase of viral replication in which viral components are assembled into complete virus particles
    Maturation
  44. A virus whose capsid is composed of 20 equilateral triangles
    Icosahedral
  45. Due to their simple structure viruses are described as _________ organisms
    Acellular
  46. Viral proteins are produced at these host cell structures
    Ribosomes
  47. A tumor that is often nonencapsulated invasive and frequency metatasizes
    Malignant
  48. A common use of attenuated viruses
    Vaccines
  49. Soluble substances often produced as a result of lysogenic conversation in bacteria
    Toxins
  50. The phase of viral replication in which viruses adhere to the host cell membrane
    Adsorption
  51. Type of viral reproductive cycle which results in the lysis of the infected host cell
    Lytic
  52. the virus envelope in derived from this part of the host cell
    Membrane
  53. A type of CPE consisting of areas in the monolayer of host cells where the multiplying viruses have lysed the cells
    Plaques
  54. An encapsulated, noninvasive tumor
    Benign
  55. A single virus particle
    Viron
  56. The polyhearl structure of a bacteriophage surrounding the viral DNA
    Head

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