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  1. Zygote - Wikipedia

    In human fertilization, a released ovum (a haploid secondary oocyte with replicate chromosome copies) and a haploid sperm cell (male gamete) combine to form a single diploid cell called the …

  2. Zygote | Definition, Development, Example, & Facts | Britannica

    Zygote, fertilized egg cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm). In the embryonic development of humans and other animals, the zygote …

  3. What Is a Zygote—and What Is a Zygote vs. Embryo? - TheBump.com

    Oct 15, 2024 · “Zygote” is the term used to define the very earliest stage of pregnancy, when a sperm and egg first unite, according to research published through the National Institutes of …

  4. Zygote: Formation, Timing, Twins, Complications - Verywell Health

    Nov 18, 2025 · A zygote, also called a fertilized egg, is the phase of conception where the egg and sperm join to form a single cell. The zygote contains a full set of chromosomes, with 23 …

  5. ZYGOTE Definition & Meaning - Merriam-Webster

    The meaning of ZYGOTE is a cell formed by the union of two gametes; broadly : the developing individual produced from such a cell.

  6. Zygote- Definition, Examples, Formation, Development, Challenges

    Aug 3, 2023 · A zygote is the first diploid eukaryotic cell that resulted from the fusion of haploid gametes (sperm and an ovum) during sexual reproduction. It is the initial stage of an embryo …

  7. What Does a Zygote Mean in Human Development?

    Aug 24, 2025 · A zygote represents the first cell formed when a sperm fertilizes an egg. It is a single, diploid cell that contains a complete set of 46 chromosomes, with 23 contributed by the …

  8. What is a zygote? | BabyCenter

    Feb 2, 2024 · When a sperm fertilizes an egg, a zygote is formed – and pregnancy begins. A zygote is the very first form your baby takes – before they're even in the womb. Read on to …

  9. Zygote | Research Starters - EBSCO

    A zygote is the initial cell produced through reproduction in humans and most other organisms. From the Greek word meaning to join or to yoke, a zygote is a single cell made by the …

  10. What Is A Zygote? How Is It Different From An Embryo?

    Jun 2, 2024 · A zygote is the simplest form of life, so once a zygote is formed, it proceeds to split and divide into new cells that organize and form more complex structures.