Gen 1 = The plant reproduces sexually
Gen 2 = The offspring of that plant reproduce asexually
and the cycle begins again, hence the name alternation
---Caveat---
This is a very simple explanation and surely there are exceptions and important details to consider depending on the exact species. For instance, triggers that can cause an alternation of generations, or sequences *how many times a the plant reproduces sexually/asexually before switching. Plant reproduction can be very complex! Good question. Just remember, all true plants will have alternating generations.
Alternation of generation in flowering plants refers to the process of plants alternating between haploid and diploid cells. It begins with two haploid cells fusing together to form a diploid cell with twice the amount of chromosomes as the original haploid. They then split into diploid sporophytes which grow and split through meiosis, which splits the chromosomes in half, leaving each daughter cell with half the amount of chromosomes. The germinates produced are therefore haploids, which go on to fuse together and form diploids, starting the process over again.
The name given to this life cycle is alternation of generations. In this cycle, plants alternate between a multicellular diploid sporophyte stage that produces spores and a multicellular haploid gametophyte stage that produces gametes.
Haploid spores in plants with alternation of generations are produced by meiosis in the sporophyte generation. Meiosis is a type of cell division that results in haploid cells (spores) with half the genetic material of the parent cell.
The life cycle of nonvascular plants includes an alternation of generations between a gametophyte and a sporophyte. The gametophyte generation produces gametes (eggs and sperm) through mitosis, which then fuse to form a zygote that develops into the sporophyte generation through mitosis. The sporophyte produces spores through meiosis that develop into new gametophytes.
It represents the diploid-dominant life cycle commonly found in plants.
All plants share the characteristics of being multicellular, having cell walls made of cellulose, undergoing photosynthesis to produce energy, and having a life cycle that includes alternation of generations.
alternation of generation
sporophyte and gametophye. since plants have alternation of generation, both are multicellular (haploid and diploid)
similarities of heteromorphic and isomorphic generation
alternation of generation is very important in plants because it results into the formation of a variety of new organisms... it is also important because it provides such organisms which have more chances of survival...
sporophyte and gametophye. since plants have alternation of generation, both are multicellular (haploid and diploid)
The spores produce gametophytic phase of the plant after germination to complete alternation of generation.
The name given to this life cycle is alternation of generations. In this cycle, plants alternate between a multicellular diploid sporophyte stage that produces spores and a multicellular haploid gametophyte stage that produces gametes.
alternation of generation is very important in plants because it results into the formation of a variety of new organisms... it is also important because it provides such organisms which have more chances of survival...
Haploid spores in plants with alternation of generations are produced by meiosis in the sporophyte generation. Meiosis is a type of cell division that results in haploid cells (spores) with half the genetic material of the parent cell.
meiosis and mitosis
Autotrophic mode of nutrition Presence of cell wall Presence of alternation of generation
sporophyte and gametophye. since plants have alternation of generation, both are multicellular (haploid and diploid)