Meiosis is significant because it 

I- brings about variations in the offspring 

II- helps in maintaining in same chromosome number in every generation of sexually reproducing organisms.

III- helps in tissue regeneration and wound healing in multicellular organisms.

Meiosis helps in bringing about variations in the offspring due to crossing over and independent assortment of chromosomes. It helps in maintaining same chromosome number in every generation of sexually reproducing organisms. Tissue regeneration and wound healing is due to mitotic divisions.