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Question:

Read the following statements regarding bryophytes and choose the incorrect option. Gametophytic phase is dominant in life cycle. Fertilisation takes place in presence of water. Zygote undergoes meiosis to produce sporophyte. Sporophyte is physiologically dependent on gametophyte.

Fertilisation takes place in presence of water

Zygote undergoes meiosis to produce sporophyte

Gametophytic phase is dominant in life cycle

Sporophyte is physiologically dependent on gametophyte

Solution:

After the process of fertilisation a diploid zygote is formed which undergoes many rounds of mitosis and give rise to a diploid multicellular sporophyte. The specialised cells of the sporophyte further undergoing meiosis form haploid spores. These spores develop into gametophytes. So, the correct answer is option B. The statement 'Zygote undergoes meiosis to produce sporophyte' is incorrect. The zygote undergoes mitosis to produce the sporophyte. Meiosis occurs in the sporophyte to produce spores.