Question

Thermostable DNA polymerases are very important in PCR. How are they obtained?

a.

They are obtained by heating the bacteria manually over high temperatures

b.

They are isolated from extremely stable thermophilic bacteria which are often found growing in oceanic vents

c.

They are found everywhere in nature

d.

They are obtained by genetically modifying the E. coli bacteria with thermal stability property

Answer: (b).They are isolated from extremely stable thermophilic bacteria which are often found growing in oceanic vents

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Q. Thermostable DNA polymerases are very important in PCR. How are they obtained?

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