Reference databases are used for sequence OTU identification for a given dataset because the reference databases have so much information that we can usually identify each sequence within a dataset to the species level. True O False A DNA extraction control is performed by taking the extraction solutions and plastic materials, but no sample material, through the entire DNA extraction protocol in the lab environment and sequencing it to identify if any bacteria are present. True O False Reference databases are used for sequence OTU identification for a given dataset because the reference databases have so much information that we can usually identify each sequence within a dataset to the species level. True O False A DNA extraction control is performed by taking the extraction solutions and plastic materials, but no sample material, through the entire DNA extraction protocol in the lab environment and sequencing it to identify if any bacteria are present. True O False