A) phenotype
B) holotype
C) auxotroph
D) prototroph
Correct Answer: D
Solution :
An organism (such as bacterium) that will grow on a minimal medium is called a prototroph while a mutant of it that will not grow on a minimal medium but requires the addition of some compound like an amino acid or vitamin is called auxotroph. The physical appearance of an individual, ie, all the manifold biological appearances including chemical, structural and behavioural attributes that we can observe from outside, is considered as its phenotype. The holotype is the one element chosen by the authors as the nomenclature type.
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