Resistance A primitive adaptive immune Zone of inhibition Th

Resistance A primitive adaptive immune Zone of inhibition The ability of a microbe to grow Bacterial lawn Bacteriophage or Enrichment Dense, solid growth across the surface of a petri dish. A lawn of bacteria is prepared and filter disks containing antimicrobial agents are applied A molecule that specifically kills or inhibits bacterial cells Mixture of a bacterial host culture, viral sample, and bacterial media A primitive adaptive immune response in bacteria; that is, bacteria can \"learn\" to become resistant General term to describe a molecule or substance that kills or inhibits microbes The ability of a microbe to grow in the presence of an otherwise toxic molecule, such as an antimic Dramatic change in population-level genetics, in response to a selective pressure A kind of virus that preferentially and exclusively infects bacterial cells A circular clearing within a lawn of growth; surrounding a disk or colony containing an antimicrobial

Solution

The basic principle of Enrichment is that of selection. Enrichment culture provides favourable growth conditions for the organism of intrest and unfavourable conditions for the competing organisms. This technique can be used in many ways. for example, if we want to culture a thermophile bacteria, incubate the sample at high temperature i.e., at above 55 degrees centigrade because at that temperature, only the thermophilic bacteria can grow while this temperature hampers the growth of other bacteria in the sample.

Likewise, enrichment culture may also contains antimicrobial agents to which the selective organism is resistant hence the required organism\'s growth is facilitated hampering the growth of other organisms which are not resistant to the antimicrobial agent.

Enrichment culture may also contains pesticides or N2 (used for selective growth of nitrogen fixing bacteria) depending upon the type of microorganism selected.

Hence the Answer is a lawn of bacteria is prepared and filter discs containing antimicrobial agents are applied.