Multiple choice

Which of the following statements is incorrect?

  1. Yeasts can generate electricity in microbial fuel cells.

  2. Yeasts are chemo-organotrophs.

  3. The most common mode of vegetative growth in yeast is asexual reproduction by regenaration.

  4. Yeasts can also tolerate high concentrations of salt and heavy metals.

  5. Nutritional yeast is an excellent source of B-complex vitamins.
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C Correct answer
Explanation

Yeasts, like all fungi, may have asexual and sexual reproductive cycles. The most common mode of vegetative growth in yeast is asexual reproduction by budding. Here, a small bud (also known as a bleb), or daughter cell, is formed on the parent cell.

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