Ключевые слова: 3d, artificial, biology, biotechnology, cell, cells, clone, cloning, early, egg, embryo, embryogenesis, embryology, female, fertility, fertilization, fetal, fetus, genetic, health, human, illustration, infertility, insemination, laboratory, magnification, medical, medicine, meiosis, microscope, microscopic, mitosis, multicellular, natural, ovum, reproduction, reproductive, research, science, stage, stem, technology, treatment, zygote,