4. What is a contaminant? Did you observe one on your plates? How would you determine whether a colony was a contaminant?/2
Added by David M.
Step 1
--- ** Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 85 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Contaminant (yellow) The "known" bacterial type 3 contaminant colonies present 5) Both of the streak plates shown above were inoculated with what was presumed to be a pure culture. Obviously, contamination is evident in both plates, as indicated by the arrows. Plate A has a yellow contaminant type intermingled with the known type throughout the quadrants of the plate. Plate B contains three contaminant types separate from the quadrants of the known type. Answer the following: a. What is the source of the contamination in Plate A? Why? Explain your answer b. What is the likely source of the contamination in Plate B? The same as for Plate A? Why or why not? Explain.
Sri K.
How could you tell if one of the colonies on your pure plate was a contaminant from the environment and did not come from your original culture?
Suman K.
How would you determine whether a colony is a contaminant or a real bacterial culture
Anand J.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD