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  1. Fertilization | Steps, Process, & Facts | Britannica

    Nov 21, 2025 · Fertilization, union of a paternal sperm nucleus with a maternal egg nucleus to form the primary nucleus of an embryo. In higher organisms the essence of fertilization is the …

  2. Human fertilization - Wikipedia

    The process of fertilization involves a sperm fusing with an egg cell also known as an ovum. The most common sequence begins with ejaculation during copulation, follows with ovulation, and …

  3. What Is Fertilization and How Does It Happen? - What to Expect

    Fertilization is when a man’s sperm combines with a woman's egg to form a single cell. It’s one of the first steps toward pregnancy, but there are more hurdles to cross.

  4. Understanding the Human Fertilization Process | Blog

    Aug 1, 2025 · In this post, we’ll walk through how fertilization works in humans—step by step—including where it happens, how long an egg is viable, and how this process is …

  5. Fertilization: What It Is, Where It Happens, & How It Feels

    Aug 7, 2025 · What is fertilization and how does it work? Learn about how, when, and where the sperm and egg meet, and what factors affect your chances of conception.

  6. Embryology, Fertilization - StatPearls - NCBI Bookshelf

    Apr 17, 2023 · Fertilization is a complex multi-step process that is complete in 24 hours. The sperm from a male meets an ovum from a female and forms a zygote; this is the point in which …

  7. Conception: Fertilization, Process & When It Happens

    Sep 6, 2022 · How does conception occur? Conception (or fertilization) is when sperm and an egg join together. It’s one of the many steps that happen to create a pregnancy.