Multiple choice

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

  1. The gametophyte produces one or more gametangia.

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

  3. The sporophyte produces one or more sporangia.

  4. Zygote divides by mitosis and forms sporophyte.

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