Venus Jain Sr. Software Engineer My first step in the IT Industry is with Mindtree, truly its an amazing experience working here. Best learning platform, best environment to work, best leaders and best colleagues to work and have fun with. I am really enjoying my journey being a Mindtree Mind.enus Jain Sr. Software Engineer My first step in the IT Industry is with Mindtree, truly its an amazing experience working here. Best learning platform, best environment to work, best leaders and best colleagues to work and have fun with. I am really enjoying my journey being a Mindtree Mind.
All plants produce spores by meiosis; algae and fungi produce spores by meiosis or mitosis. This is called alternation of generation. In the lower plants, the gametophyte generation is the dominant stage; in higher plants, the sporophyte generation is the dominant stage. Four major groups of plants have evolved. The bryophytes are seedless and disperse via haploid spores. The ferns, gymnosperms, and flowering plants have vascular tissue.
Spores are haploid reproductive cells. Remember, a sporophyte is a diploid organism, so in order to produce haploid cells with half the number of chromosomes, meiosis must occur. Meiosis is a type of cell division that cuts the number of chromosomes in a cell in half. In sporophytes, it occurs in structures called sporangia (sporangium is singular). Once spores are produced in a sporangium, they are often released into the air. A single haploid spore will undergo mitosis, or cell division without a reduction in chromosome number, to become a multicellular haploid gametophyte.