TLS Online TPP Program

#Question id: 15257


complex media often are needed because the nutritional requirements of a particular microorganism are

#XL - S Microbiology
  1. known, and thus a defined medium cannot be constructed
  2. unknown, and thus a defined medium cannot be constructed
  3. unknown, and thus a defined medium can also be constructed
  4. known, and thus a defined medium can also be constructed