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45 Cards in this Set

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  • Back
when gal operon is turned on...
bio operon is turned on
genetic fusion
genetic engineering that allows transposition of genes from one location on a chromosome to another location; the coupling of genes from two different operons
operon
sequence of closely associated genes that includes both structural genes and regulatory sites that control transcription.
resistance plasmid
(R Factor)
plasmid that carries genes that provide resistance to a specific antibiotic or toxic metal
Resistance Transfer Factor (RTF)
a component of a resistance plasmid that implements transfer by conjugation of the plasmid
Polymerase Chain Reaction (PCR)
A way of amplifying DNA
For a virus to grow it has to be ...
inside a cell
_____ _____ allow viruses to recognize things
tail fibers
A virus is host specific meaning that
a virus in humans wont affect a virus is dogs
What parts of the virus make contact with the cell wall?
The plate and the pin
Genome

(function)
carries the genetic information necesary for replication of new phage particles.
Tail Sheath

(function)
retracts so that the genome can move from the head into the host cell's cytoplasm
plate and tail fibers

(function)
attach phage to specific receptor sites on the cell wall of a susceptible host bacterium
host range
sometimes a virus will only affect one cell type in a host.
Virulent phage
always kills the host
Resistance Gene
a component of a resistance plasmid that confers resistance to a specific antiobiotic or toxic metal.
temperate phage
may exist as a prophage in a lysogenic state
lysogenic
a state of DNA integration into a host cell.
prophage
the DNA of a lysogenic phage that has integrated into the host cell's chromosome.
Virus head is made of ______ and is called a _______.
protein; capsomere
Viroids
Short RNA molecules (246-399 bases). Exist in nucleoli as naked RNA. do not code for any proteins.
Prion
a small infection particle consisting of a protein without any nucleic acid
Virus
a submicroscopic, parasitic, acellular microorganism composed of a nucleic acid (DNA or RNA) core inside a protein coat
Fungus
the kingdom of nonphotosynthetic, eukaryotic organisms that absorb nutrients from their environment
Parasite
an organism that lives in or on, and at the expense of, another organism
Hypersensitivity
an allergic reaction to molds and spores
Mycotoxicoses
poisoning of man and animals by feeds and food products contaminated by fungi which produce toxins from the grain substrate
Ergotamines
rye and other cereals- induce abortions through uterine contractions- regulated dosage helps relieve migranes
Mycetismus
the ingestion of preformed toxin (mushroom poisoning)
Infection
the multiplication of a parasite organism, usually microscopic, within or upon the host's body.
Resistance Gene
a component of a resistance plasmid that confers resistance to a specific antiobiotic or toxic metal.
temperate phage
may exist as a prophage in a lysogenic state
lysogenic
a state of DNA integration into a host cell.
prophage
the DNA of a lysogenic phage that has integrated into the host cell's chromosome.
Virus head is made of ______ and is called a _______.
protein; capsomere
Viroids
Short RNA molecules (246-399 bases). Exist in nucleoli as naked RNA. do not code for any proteins.
Prion
a small infection particle consisting of a protein without any nucleic acid
Virus
a submicroscopic, parasitic, acellular microorganism composed of a nucleic acid (DNA or RNA) core inside a protein coat
Fungus
the kingdom of nonphotosynthetic, eukaryotic organisms that absorb nutrients from their environment
Parasite
an organism that lives in or on, and at the expense of, another organism
Hypersensitivity
an allergic reaction to molds and spores
Mycotoxicoses
poisoning of man and animals by feeds and food products contaminated by fungi which produce toxins from the grain substrate
Ergotamines
rye and other cereals- induce abortions through uterine contractions- regulated dosage helps relieve migranes
Mycetismus
the ingestion of preformed toxin (mushroom poisoning)
Infection
the multiplication of a parasite organism, usually microscopic, within or upon the host's body.