Multiple choice

Which among the following statements regarding the alternation of generations in plants is incorrect?

  1. Two single-celled haploid gametes fuse to form a single-celled diploid zygote.

  2. Zygote divides by mitosis and form sporophytes.

  3. The sporophyte produces one or more sporangia.

  4. The single-celled haploid spore divides by meiosis and forms gametophyte.

  5. The gametophyte produce one or more gametangia.
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D Correct answer
Explanation

The single-celled haploid spore germinates, dividing by the normal process (mitosis), which maintains the number of chromosomes at n. The result is a multi-cellular haploid organism, called the gametophyte (because it produces gametes at maturity).

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