Bacterai Flashcards

1
Q

what is it Genetic transformation

A

when ahost organism takes in foreign DNA and expresses the foreing gene

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2
Q

Describe E.coli

A

Most common bacteria in intestines, extensively studied and important research organism.

Reproduce rapidly

some contain plasmid, small Dna molecule, that carry genes for specialized functions and resistance to certain drugs.

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3
Q

what is plasmid

A

circular pieces of DNA that exist outside bacterial chromosome and carry their own genes for specialized functions.

means that introduce foreing DNA into bacteria cell.

Dont merge with chromosome

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4
Q

why is sterile so importnat

A

so that you dont fall sick or make your work sick

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5
Q

what is purpose of CaCl

2

A

to weaken cell wall, so plasmid can travel

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6
Q

what is purpose of heat of shock

A

to make ampR plasmids travel easily through bacteria cell wall and membrane.

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