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  1. XY sex-determination system - Wikipedia

    In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in …

  2. What Are Sex Chromosomes (XX and XY Chromosomes)? - WebMD

    There are two kinds of sex chromosomes: X and Y. Sex chromosomes decide whether you’re biologically male (XY) or female (XX), but they don’t define your gender.

  3. XY official channel - YouTube

    June , 2025 デビュー2周年を記念した XY 1st ALBUM Release決定! #XY #YOSHIKI #手越祐也 #CrazyLove.

  4. Sex chromosome | Definition, Examples, & Facts | Britannica

    2025年7月31日 · Individuals having two X chromosomes (XX) are female; individuals having one X chromosome and one Y chromosome (XY) are male. The X chromosome resembles a large …

  5. How Is Your Sex Determined? | Ask A Biologist

    People usually have two sex chromosomes. Typically, embryos with one X and one Y chromosome develop into males. And those with two X chromosomes usually become …

  6. X Y Chromosomes | Psychology Today

    Each human cell contains 23 pairs of chromosomes that carry DNA within their nucleus. The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They …

  7. XY Official Website

    2025年3月5日 · XYは、日本テレビ系オーディション番組「YOSHIKI SUPERSTAR PROJECT X」から誕生した13人組の変幻自在なボーイズバンド。

  8. Sex Chromosomes: Definition, Purpose, Examples - Healthline

    2023年12月14日 · We’re usually told that people with XY chromosomes are male and people with XX chromosomes are female. It’s a lot more complicated than that. Typically, there are 46 …

  9. The XY Chromosome and Its Role in Human Biology

    2025年8月4日 · One specific pair, known as the sex chromosomes, plays a central role in determining biological sex. While females generally have two X chromosomes (XX), males …

  10. Sex determination: The X, Y, Z’s of sex chromosomes

    2021年7月15日 · The XY sex determination system is found in humans, most placental mammals, as well as some insects, snakes, fish, and plants. In this system, the genetic sex of an …