Biology Dictionary

  • Yakalo

    Yakalo

    A hybrid between a yak and a cow, typically produced for agricultural or labor purposes in regions where both species…

  • Yeast

    Yeast

    A type of fungus used in baking and brewing, as it ferments sugars to produce carbon dioxide and alcohol.

  • Yeast artificial chromosome (YAC)

    Yeast artificial chromosome (YAC)

    A tool used in genetic engineering to clone large pieces of DNA in yeast, aiding in the study of gene…

  • Yoghurt

    Yoghurt

    A fermented dairy product made by bacterial cultures fermenting milk, resulting in a thick, tangy substance.

  • Yolk

    Yolk

    The nutrient-rich substance inside an egg that provides food for the developing embryo.

  • Z-chromosome

    Z-chromosome

    A sex chromosome found in some species, primarily in reptiles, that determines female sex in contrast to the male-determining W…

  • Z chromosome

    Z chromosome

    A sex chromosome in some species of reptiles and amphibians that, in combination with the W chromosome, determines female sex.

  • Z-DNA

    Z-DNA

    A left-handed form of DNA that has a zigzag structure, believed to play a role in gene regulation and DNA…

  • Zeatin

    Zeatin

    A type of plant hormone, a cytokinin, that promotes cell division and growth in plants.

  • Zebrass

    Zebrass

    A hybrid between a zebra and a horse, also called a zorse or zebroid.