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Lab 03B: HHMI Bacterial Identification Virtual Lab Questions and Correct Answers/ Latest Update / Already Graded
What is the piece of DNA used for identifying bacteria, and what does 
this indentification rely on? 
 Ans: The region that codes for a small subunit of the ribosomal 
RNA (16S RNA) 
the identification relies on matching the sequence from your 
sample against a database of all known 16S rDNA sequences 
 
Describe the process of extracting bacterial DNA (sample preparation) 
 Ans: 1. dissolve the cell wall with digestive buffer 
2. heat sample in a water bath 100°C to denature proteolyt...