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PORTAGE LEARNING, MICROBIOLOGY MODULE 6 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ LATEST UPDATE 2024/2025 $8.99   Add to cart

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PORTAGE LEARNING, MICROBIOLOGY MODULE 6 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ LATEST UPDATE 2024/2025

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PORTAGE LEARNING, MICROBIOLOGY MODULE 6 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ LATEST UPDATE 2024/2025 virus a small, non-cellular particle that cannot replicate unless inside a living host cell obligate intracellular parasites unable to replicate on their own 2 components o...

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  • June 23, 2024
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  • 2023/2024
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PORTAGE LEARNING, MICROBIOLOGY MODULE 6 EXAM

QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED

A+ LATEST UPDATE 2024/2025

virus

a small, non-cellular particle that cannot replicate unless inside a living host cell

obligate intracellular parasites

unable to replicate on their own

2 components of a virus

genomic material comprised of either DNA or RNA and a capsid

capsid

a membrane-like protective structure that contains the genetic material, similar to the

nucleus of a eukaryotic cell

are viruses prokaryotic or eukaryotic?

Neither, they are acellular

Viral genomes can be either ___________-stranded and may be found in

_________ arrangement

double- or single- / circular or linear

envelope

an additional layer around the capsid, derived from the host cell membrane and serves

as an additional barrier to the external environment

, naked (non-enveloped) virus

a virus simply surrounded by the protein capsid

The overwhelming majority of animal viruses are __________________ whereas

the majority of plant or bacteria-infecting viruses are not.

Enveloped

Differences in ________________ can also significantly influence the shape and

appearance of the virus.

virion composition

smallpox virus

an enveloped, ~ 200 nm long and has a distinct dumbbell shaped viral capsid

poliovirus

non-enveloped and only ~30 nm in diameter

Differences between viruses are best visualized via an ____________.

electron microscope

paramyxoviruses and orthomyxoviruses

both enveloped, spherical and ~100-150 nm in diameter but vary drastically in

composition and function

paramyxoviruses

the causative agent of measles and mumps, contain a single-stranded linear genome

and fuses with the host cell membrane to initiate entry and viral replication

orthomyxoviruses

the causative agent of the flu, contain eight segments of RNA and enters the host cell

via endocytosis

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