Multiple choice

Consider the following statements:

  1. Polyhydroxybutyrates are produced by bacterial fermentation.

  2. Polyhydroxybutyrates can be used as biodegradable plastics.

  3. Transgenic trees are used in producing polyhydroxybutyrates.

Which of the statements given above is/are correct?

  1. 1 only

  2. 1 and 2 only

  3. 2 and 3 only

  4. 1,2 and 3

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All three statements about polyhydroxybutyrates (PHB) are correct. PHB is indeed produced by bacterial fermentation (e.g., Alcaligenes eutrophus), serves as a biodegradable plastic alternative to conventional plastics, and transgenic plants including trees have been genetically engineered to produce PHB for commercial-scale production. This makes PHB an important sustainable biomaterial.

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