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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 fusion of the …

  2. 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.

  3. 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 finishes with …

  4. 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.

  5. 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 replicated during in vitro …

  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 pregnancy begins …

  7. Fertilization: What It Is, Where It Happens, & How It Feels - Glow

    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.

  8. Fertilization Process: A Detailed Guide to Conception and …

    May 14, 2025 · From ovulation to the meeting of gametes in the fallopian tube, this guide provides a comprehensive look at how fertilization occurs. Ideal for medical students, researchers, or anyone …

  9. What Are the Steps of Fertilization in Humans? - inviTRA

    Apr 10, 2024 · Fertilization of the egg is essential for pregnancy to occur. The union of the egg and sperm can occur naturally in the fallopian tubes or in vitro in the laboratory. Once the egg is fertilized, …

  10. What Is Fertilization? Process, Types & Key Factors

    Jan 31, 2025 · When fertilization of an egg by sperm happens originates from males and females to create a new zygote. The essential biological process maintains species continuity and seeds the …