Which of the following is true? Question 18 options: Bryophyte roots are haploid

Question

Which of the following is true?

Question 18 options:

Bryophyte roots are haploid but fern rhizoids are diploid.

Both bryophyte roots and fern roots are haploid.

Bryophyte rhizoids but not fern roots can take up nutrients.

Bryophyte rhizoids are associated with the gametophyte generation whereas fern roots are associated with the sporophyte generation.

Both bryophyte roots and fern roots contain vascular tissue.

Bryophyte roots are haploid but fern rhizoids are diploid.

Both bryophyte roots and fern roots are haploid.

Bryophyte rhizoids but not fern roots can take up nutrients.

Bryophyte rhizoids are associated with the gametophyte generation whereas fern roots are associated with the sporophyte generation.

Both bryophyte roots and fern roots contain vascular tissue.

Explanation / Answer

Ans: Bryophyte rhizoids are associated with the gametophyte generation whereas fern roots are associated with the sporophyte generation.

Haploid stage is dominant in bryophyte roots, while diploid stage is dominant in fern rhizoids. So the first two options are incorrect.

Though primitive bryophytes can take up nutrients by diffusion. Ferns have an advance system that includes vascular tissues like xylem and phloem for the purpose. So third and fifth options are incorrect.

The fourth option is correct because bryophytes have a dominant haploid gametophyte stage and ferns show a dominant diploid sporophyte phase.

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