Antigenic Drift
WORD LIST
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ACELLULAR
ADSORPTION
AMINO ACIDS
ANTIGENIC DRIFT
ATTENUATED
BACTERIOPHAGE
BENIGN
BUDDING
CAPSID
CAPSOMERES
CELL WALL
COMPLEMENTARY
COMPLEX
CORE
CYTOPLASM
EGGS
ENERGY
ENVELOPE
EPIDEMICS
HEAD
HELICAL
ICOSAHEDRAL
INCLUSION BODIES
INTRACELLULAR PARASITES
LYSIS
LYSOGENIC CONVERSION
LYSOGENY
LYTIC
MALIGNANT
MATURATION
MEMBRANE
METASTASIS
NAKED
NANOMETERS
NUCLEUS
ONCOGENE
PENETRATION
PLAQUES
PROPHAGE
PROVIRUS
RECURRENT
RELEASE
RETROVIRUSES
REVERSE TRANSCRIPTASE
RIBOSOMES
RNA
SPIKES
TAIL
TERATOGENESIS
TISSUE CULTURES
TOXINS
TRANSFORMATION
TUMOR
UNCOATING
VACCINES
VIRON
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VIRUSES
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ACROSS
1.The changing of normal cells into neoplastic (cancerous) cells.
4.The flexible membrane surrounding the capsid of some viruses.
6.DNA viruses are assembled in this area of the host cell.
8.The phase of viral replication in which the viral capsid is dissolved releasing the core.
10.The phase of viral replication in which the virus enters the host cell.
12.The protein coat surrounding the viral nucleic acid.
16.The antigenic drift occurring in some viruses is responsible for repeated ______.
17.Bacteriophage DNA that is permanently incorporated into the DNA of a bacterial cell.
18.Glycoproteins occurring on the capsid or envelope that function in the attachment of the virus to the host cell membrane.
19.The nucleic acid in viruses is called the _____.
21.A culture medium for viruses.
22.Changes in viral structure due to frequent spontaneous mutations.
24.Organisms (i.e. viruses) that are unable to multiply outside a host cell.
26.In order for adsorption to occur the viral spikes must be ______to the receptor sites on the host cell.
27.Viruses must obtain this from the host cell.
28.The movement of neoplastic cells from one part of the body to another resulting in the formation of a secondary tumor.
31.The viral core may consist of DNA or ___.
32.A virus that infects bacterial cells.
36.The process during which viruses acquire their envelope.
37.The phase of viral replication in which mature virus particles leave the host cell.
41.A cancer causing gene.
42.RNA viruses capable of transcribing their RNA into DNA in the host cell’s cytoplasm.
44.The bacteriophage is an example of a _____ shaped virus.
46.The condition that occurs when a provirus becomes permanently incorporated in the host cell’s DNA, remains dormant and is inherited by all daughter cells.
50.The helical shaped, hollow structure that is part of a bacteriophage.
51.Granules occurring in the cytoplasm or nucleus of a viral infected host cell at the site of viral replication.
52.The accumulation of abnormal or transformed cells.
53.In order to infect a bacterial cell the tail of the bacteriophage must attach to the ______of the bacterium.
DOWN
2.The enzyme produced by the Retroviruses.
3.Viruses are measured in this unit.
5.Method of release for bacterial viruses and some animal viruses.
7.Subunits of the capsid.
9.Capsomeres are formed of chains of identical ______.
11.Viruses that lack an envelope are called ______viruses.
13.Condition that occurs when a prophage is expressed giving the bacterial cell a new, different property (the ability to produce disease).
14.A culture medium for viruses consisting of viable animal cells.
15.A coiled or corkscrew shaped virus.
17.Viral DNA that has become permanently incorporated into the DNA of a host cell is called a ______.
20.Infections that occur as a result of repeated activation of a lysogenic provirus which enters the lytic cycle.
23.Viable viruses that are weakened, unable to produce disease.
25.Condition that occurs when viruses cross the placenta and infect the fetus.
26.RNA viruses are replicated and assembled in this area of the host cell.
28.The phase of viral replication in which viral components are assemble into complete virus particles.
29.A virus whose capsid is composed of 20 equilateral triangles.
30.Due to their simple structure , viruses are described as ______organisms.
33.Viral proteins are produced at these host cell structures.
34.A tumor that is often nonencapsulated, invasive and frequently metastasizes.
35.A common use of attenuated viruses.
38.Soluble substances often produced as a result of lysogenic conversion in bacteria.
39.The phase of viral replication in which viruses adhere to the host cell membrane.
40.Type of viral reproductive cycle which results in the lysis of the infected host cell.
43.The virus envelope is derived from this part of the host cell.
45.A type of CPE consisting of areas in the monolayer of host cells where the multiplying viruses have lysed the cells.
47.An encapsulated, noninvasive tumor.
48.A single virus particle.
49.The polyhedral structure of a bacteriophage surrounding the viral DNA.
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