Which of the following statements correctly describes the alternation of generations in a plant life cycle?
A. Diploid sporophytes that produce gametes by meiosis alternate with haploid gametophytes that produce spores by mitosis.
B. Diploid sporophytes that produce spores by mitosis alternate with haploid sporophytes that produce gametes by meiosis.
C. Diploid sporophytes that produce spores by meiosis alternate with haploid gametophytes that produce gametes by mitosis.
D. Diploid gametophytes that produce spores by mitosis alternate with haploid sporophytes that produce gametes by meiosis.

Generation Alternation seems to be a method of development process found in domestic cell walls animals as well as of plants where typically express populations overlap between diploid or haploid species.
This could be associated with animal random mutations, where both the mentioned cells are present in each generation.

Some other choices provided do not correspond to the circumstance in question. And the correct response will be Option C.

luisvaschetto luisvaschetto · Answer 2 · 2021-10-23T15:25:14+02:00

The statement 'diploid sporophytes that produce spores by meiosis alternate with haploid gametophytes that produce gametes by mitosis' correctly describes the alternation of generations in a plant life cycle (Option C).

In plants, the diploid (2n) sporophyte undergoes meiosis to generate haploid (n) spores.

Subsequently, plant spores undergo successive mitosis to produce multicellular haploid (n) gametophytes.

In the gametophyte phase, a plant produces male and female haploid (n) gametes by mitosis in organs known as gametangia.

The diploid (2n) sporophyte is the zygote produced from the fusion of two (one male and one female) plant gametes. This zygote first develops into an embryo which will give rise to the adult sporophyte by successive mitosis.

In conclusion, the statement 'diploid sporophytes that produce spores by meiosis alternate with haploid gametophytes that produce gametes by mitosis' correctly describes the alternation of generations in a plant life cycle (Option C).

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