Fifteen bacterial colonies growing on a complete medium are replica-plated to a minimal medium. Twelve of the colonies grow on minimal medium.

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Part A

Using terminology from the chapter, characterize with the appropriate term the 12 colonies that grow on minimal medium.

 

Part B

Using terminology from the chapter, characterize with the appropriate term the 3 colonies that do not grow on minimal medium.

 

Part C

The three colonies that do not grow on minimal medium are replica-plated to minimal medium plus the amino acid serine (min + Ser), and all three colonies grow. Using terminology from the chapter, characterize with the appropriate term these three colonies

 

asked Nov 21, 2012 in Genetics by GeneX ~Top Expert~ (7,947 points)
    

1 Answer

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Part A

prototrophs

 

Part B

auxotrophs

 

Part C

serine-requiring auxotrophs

answered Nov 21, 2012 by GeneX ~Top Expert~ (7,947 points)

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