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Question

Which of the following is a good example of heterothallism?

A
Spirogyra
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B
Rhizopus
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C
Pinus
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D
Castor bean
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Solution

The correct option is B Rhizopus
  • Rhizopus stolonifer is also known as black bread mold. It is a widely distributed thread-like mucoralean mold.
  • It is a heterothallic species, in that sexual reproduction happens only when opposite mating types come in contact.
  • Successful mating results in the formation of durable zygospores at the point of contact.
  • So, the correct answer is option B.

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