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    Human fetus developing at week 23, computer illustration. — Stock Photo
    Human fetus developing at week 23, computer illustration.
    Illustration of sperm fertilizing human egg cell. — Stock Photo
    Illustration of sperm fertilizing human egg cell.
    View of Fetus at 7 weeks — Stock Photo
    View of Fetus at 7 weeks
    Fertilization of healthy human egg — Stock Photo
    Fertilization of healthy human egg
    Embryonic stem cells — Stock Photo
    Embryonic stem cells
    Illustration of human foetus on week 15 term. — Stock Photo
    Illustration of human foetus on week 15 term.
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Illustration of red human embryo on black background at pregnancy stage of week 38. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 38.
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    Penicillium fungus, Computer illustration — Stock Photo
    Penicillium fungus, Computer illustration
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Illustration of red human embryo on black background at pregnancy stage of week 18. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 18.
    Male reproductive system — Stock Photo
    Male reproductive system
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Uterine cancer. Computer illustration showing a cancerous tumour in the uterus and a close-up view of a cancer cell — Stock Photo
    Uterine cancer. Computer illustration showing a cancerous tumour in the uterus and a close-up view of a cancer cell
    Human embryo with four cells — Stock Photo
    Human embryo with four cells
    Prostate showing a concretion of secretory materials — Stock Photo
    Prostate showing a concretion of secretory materials
    Illustration of human foetus on week 6 of pregnancy. — Stock Photo
    Illustration of human foetus on week 6 of pregnancy.
    Illustration of human foetus on week 34 term. — Stock Photo
    Illustration of human foetus on week 34 term.
    View of Fetus at 7 weeks — Stock Photo
    View of Fetus at 7 weeks
    Male reproductive system, illustration. — Stock Photo
    Male reproductive system, illustration.
    Fungus releasing spores, computer illustration — Stock Photo
    Fungus releasing spores, computer illustration
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Illustration of human foetus on week 26 term. — Stock Photo
    Illustration of human foetus on week 26 term.
    Illustration of human foetus on week 13 term. — Stock Photo
    Illustration of human foetus on week 13 term.
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Pregnant and sad woman covering face — Stock Photo
    Pregnant and sad woman covering face
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    View of Fetus at 4 weeks — Stock Photo
    View of Fetus at 4 weeks
    Colored scanning electron micrograph of surface of human fallopian tube with epithelium of columnar cells with cilia. — Stock Photo
    Colored scanning electron micrograph of surface of human fallopian tube with epithelium of columnar cells with cilia.
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Female doctor in blue uniform and sterile mask examining unrecognizable patient on gynecological chair in fertility clinic — Stock Photo
    Female doctor in blue uniform and sterile mask examining unrecognizable patient on gynecological chair in fertility clinic
    Female doctor in blue uniform and sterile mask examining smiling patient on gynecological chair in fertility clinic — Stock Photo
    Female doctor in blue uniform and sterile mask examining smiling patient on gynecological chair in fertility clinic
    Computer illustration of unicellular yeast fungus Candida auris. — Stock Photo
    Computer illustration of unicellular yeast fungus Candida auris.
    Christmas cactus pollen — Stock Photo
    Christmas cactus pollen
    Tiger lily pollen — Stock Photo
    Tiger lily pollen
    Pollen grains from different plants, computer illustration — Stock Photo
    Pollen grains from different plants, computer illustration
    Digital illustration of pollen grains on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grains on anther of Chinese hibiscus flower.
    Magnified digital illustration of 2 cell stage embryo. — Stock Photo
    Magnified digital illustration of 2 cell stage embryo.
    3d illustration of human sperm cells in reproductive process. — Stock Photo
    3d illustration of human sperm cells in reproductive process.
    Abstract fungi releasing allergic spores, 3d digital illustration. — Stock Photo
    Abstract fungi releasing allergic spores, 3d digital illustration.
    Colored scanning electron micrograph of pollen grains from marigold flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from marigold flower.
    Illustration of human foetus on week 38 term. — Stock Photo
    Illustration of human foetus on week 38 term.
    Human fetus developing at week 6, computer illustration. — Stock Photo
    Human fetus developing at week 6, computer illustration.
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Full-term Pregnancy — Stock Photo
    Full-term Pregnancy
    Cryogenic human egg storage for In vitro fertilisation . — Stock Photo
    Cryogenic human egg storage for In vitro fertilisation .
    Illustration of human foetus on week 6 on blue background. — Stock Photo
    Illustration of human foetus on week 6 on blue background.
    Uterus in female body, anatomical computer illustration. — Stock Photo
    Uterus in female body, anatomical computer illustration.
    Male reproductive system — Stock Photo
    Male reproductive system
    Human fetus developing at week 11, computer illustration. — Stock Photo
    Human fetus developing at week 11, computer illustration.
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    View of Fetus at 38 weeks — Stock Photo
    View of Fetus at 38 weeks
    View of Fetus at 15 weeks — Stock Photo
    View of Fetus at 15 weeks