A) A plant that responds by bending towards the sun
B) A plant that is able to synthesize its own carbohydrates
C) Mutant which has lost its ability to synthesize one or more essential compounds
D) An organism that depends on another organism for meeting its nutritional requirements
Correct Answer: C
Solution :
In 1944, Beadle and Tatum irradiated Neurospora crassa with X-rays and obtained a number of nutritional mutants called auxotrophs.
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