particular strain of Neurospora crassa required citrulline in the medium while the wild type did not. How do you refer to the former ? Why is it so called ?

particular strain of Neurospora crassa required citrulline in the medi

1.	particular strain of Neurospora crassa required citrulline in the medium while the wild type did not. How do you refer to the former ? Why is it so called ?
Answer» Auxotroph, because it needed increased nutrition (G. auxano = to increase), it needed citrulline as it lacked the gane for the enzyme that could catalyse the change of ornithine into citrulline.

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particular strain of Neurospora crassa required citrulline in the medium while the wild type did not. How do you refer to the former ? Why is it so called ?

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