In this life cycle,the sporophytic phase is limited to the zygote.

Which of the following exhibits alternation of generations in their life cycle?

$A$: Different plant groups show different patterns of life cycles.
$R$: During the life cycle,there is an alternation of generation between a diploid gametophyte and a haploid sporophyte.

Statement $X$: $Allium$ $cepa$ shows a diplontic life cycle.
Statement $Y$: The diploid sporophytic phase is the main,long-lived,dominant,photosynthetic,and independent phase.

In a haplontic life cycle,the zygote divides by meiosis to form which type of nuclei before germination?

Which of the following statements is $NOT$ false regarding the diplontic life cycle?