A) prototrophs, auxophytes
B) auxotrophs, prototrophs
C) prototypes and auxotrophs
D) prototrophs and auxotrophs
Correct Answer: D
Solution :
Lederberg and Tatum while working on E. coli states that the strain of bacteria which can grow on simplest (minimal) media are called prototrophs and those mutant strains which require some specific substance to grow in addition with minimal media are called auxotrophs,
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