Purchase Solution

Need help with the questions below

Not what you're looking for?

Ask Custom Question

1) What are three reasons one might a situation in which bacterial colonies are found on the first section of a streak plate, but not on sections two and three?

2) How would one determine which colonies might be contaminants on a streak plate?

Purchase this Solution

Solution Preview

When you say 'streak plate', I'm assuming that you are streaking out a single colony of bacteria, or a liquid broth of bacteria to produce a bunch of identical colonies on solid media. If that's the case, then your first section will have the most colonies, generally there are so many colonies that ...

Purchase this Solution

Free BrainMass Quizzes
Biochemistry Basics

A refresher quiz to test your knowledge of basics concepts of biochemistry.

Infant Development: Sleep

How much do you know about infant sleep? Test your knowledge with this quiz.

Feeding Babies

Do you know the science behind feeding babies? Test your knowledge with this quiz.

Labor Comfort Measures

Do you know how to comfort someone in labor?

Hemophilia: Fact or Fiction

Do you know the truth about hemophilia? Test your knowledge here.