Question

The phenomenon that led to the discovery of penicillin involves [NCERT 1983]
A) Biological antagonism
B) Genotype competition
C) Substrate competition
D) Struggle for existence

Answer 1

Hey mate..
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Correct Answer: A

Reason:--

Biological Antagonism is the result of the interaction between structures, chemical agents, or diseases that have opposing physiological functions or effects. 

#racks

Answer 2

Hєy Mατє ^_^

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Aиsωєr:

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The phenomenon that led to the discovery of penicillin involves Genotype competition.

Cσrrєcτ Oρτiσи : B)

#Bє Brαiиℓy ❤️