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  2. Gamete - Wikipedia

    en.wikipedia.org/wiki/Gamete

    Gametes of both mating individuals can be the same size and shape, a condition known as isogamy. By contrast, in the majority of species, the gametes are of different sizes, a condition known as anisogamy or heterogamy that applies to humans and other mammals. The human ovum has approximately 100,000 times the volume of a single human sperm cell.

  3. Gametogenesis - Wikipedia

    en.wikipedia.org/wiki/Gametogenesis

    In mammalian germ cell development, sexually dimorphic gametes differentiates into primordial germ cells from pluripotent cells during initial mammalian development. [2] Males and females of a species that reproduce sexually have different forms of gametogenesis: spermatogenesis (male): Immature germ cells are produced in a man's testes. To ...

  4. Gametocyte - Wikipedia

    en.wikipedia.org/wiki/Gametocyte

    Gametogenesis is the formation or production of gametes (taking place during meiosis). The development and maturation of sex cells also takes place during meiosis. Gametogenesis is also the process of formation in male and female gametes that occur in the gonads (ovary and testis). Both male and female produce gametes.

  5. Germline - Wikipedia

    en.wikipedia.org/wiki/Germline

    In other words, they are the cells that form gametes (eggs and sperm), which can come together to form a zygote. They differentiate in the gonads from primordial germ cells into gametogonia, which develop into gametocytes, which develop into the final gametes. [1] This process is known as gametogenesis.

  6. What if Men Could Produce Their Own Eggs? - AOL

    www.aol.com/news/men-could-produce-own-eggs...

    The National Academy of Sciences addresses many of these ethical concerns in its In Vitro-Derived Human Gametes conference proceedings report released in October 2023. That report is summarizing ...

  7. Human reproductive system - Wikipedia

    en.wikipedia.org/wiki/Human_reproductive_system

    Gametes are produced within the gonads through a process known as gametogenesis. This occurs when certain types of germ cells undergo meiosis to split the normal diploid number of chromosomes (n=46) into haploid cells containing only 23 chromosomes. [10] Anatomy of the testis

  8. Meiosis - Wikipedia

    en.wikipedia.org/wiki/Meiosis

    For example, diploid human cells contain 23 pairs of chromosomes including 1 pair of sex chromosomes (46 total), half of maternal origin and half of paternal origin. Meiosis produces haploid gametes (ova or sperm) that contain one set of 23 chromosomes. When two gametes (an egg and a sperm) fuse, the resulting zygote is once again diploid, with ...

  9. Egg cell - Wikipedia

    en.wikipedia.org/wiki/Egg_cell

    Gametes are produced by the haploid generation, which is known as the gametophyte. The female gametophyte produces structures called archegonia, and the egg cells form within them via mitosis. The typical bryophyte archegonium consists of a long neck with a wider base containing the egg cell. Upon maturation, the neck opens to allow sperm cells ...