About 193,000 results
Open links in new tab
  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 zygote.

  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 stage is …

  3. What Is a Zygote—and What Is a Zygote vs. Embryo?

    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 Health (NIH).

  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 from the egg …

  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 from which a …

  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 egg and 23 …

  8. 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 fertilization, either …

  9. 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.

  10. 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 find out how and …