Which of the following induces sexual reproduction in Mucor/Rhizopus?

Indole acetic acid

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Trisporic acid

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Gibberellic acid

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Citric acid

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Solution

The correct option is B Trisporic acid
Blakslee (1904) discovered the phenomenon of sexual incompatibility in fungi. Since, the two compatible strains could not be distinguished morphologically, he labelled one '+' and the other '-'. Later, Burgeff (1924) demonstrated that a diffusable substance is responsible for the initiation of sexual reproduction and has been chemically identified to be trisporic acid.
Thus, the correct answer is option B.

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