According to Wikipedia:
Meiosis is a specialized type of cell division that reduces the chromosome number by half. This process occurs in all sexually reproducing single-celled and multicellular eukaryotes, including animals, plants, and fungi Because the number of chromosomes is halved during meiosis, gametes can fuse (i.e. fertilization) to form a diploid zygote that contains two copies of each chromosome, one from each parent.
So it means that a haploid plant body will give rise to either a male sex organ or female sex organ that produces gametes to form zygote thus completing the alternation of generation. We also know that chara a monoecious plant can be dioecious, which means that haploid plant body is producing both antheridia and archegonia which produce gametes by mitosis. Coming to my question, "HOW CAN A PRODUCT OF MEIOSIS BEFORE FERTILISATION BE BISEXUAL?" Does this implies that reduction division is not responsible of sex differentiation? If yes then what is responsible for sex differentiation in plants like chara where a haploid produces both gametes ? Explanation will be appreciated