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...Asset how to make a bacterial streak plate caution when working with any form of bacteria even nonpathogenic like pseudomonas fluorescens take extreme use sterile technique and seal all containers that are stored in sure you always clean your work area before after handling cultures wash hands finished made the ancestral will allow students see individual colonies original population these ones want ensure have genetically identical cells clones using marker label date initials species plating agar until ready complete this minimizes risk contamination streaking it is important loops open sealed at pointed end loop should not be handled or come contact anything but since disposable plastic need four for one hold horizontally relative bad good helps minimize digging into pick up very small amount from source broth can used as material making may only stuff on there millions present more than enough spread zigzag pattern shown below holding cover an angle over while help eliminate possib...