<P> Gram stain or Gram staining , also called Gram 's method , is a method of staining used to distinguish and classify bacterial species into two large groups ( gram - positive and gram - negative ) . The name comes from the Danish bacteriologist Hans Christian Gram , who developed the technique . </P>
<P> Gram stain or Gram staining , also called Gram 's method , is a method of staining used to distinguish and classify bacterial species into two large groups ( gram - positive and gram - negative ) . The name comes from the Danish bacteriologist Hans Christian Gram , who developed the technique . </P>
who developed a useful staining method to identify bacteria
who developed a useful staining method to identify bacteria
Hans Christian Gram
Hans Christian Gram