If the egg receives an X chromosome from the sperm, the fertilized egg is XX, or female. But if the egg gets a Y chromosome, the baby is XY, or male.

In the XX/XY system, karyotypic females usually have two X chromosomes (XX), while karyotypic males usually have a single X and a single Y chromosome (XY).

May 6, 2025 · If the sperm that fertilises the egg carries an X, the baby will have two X chromosomes (XX), typically developing as female. If the sperm carries a Y, the baby will have one X and one Y …

Dec 3, 2025 · 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 …

While most people are typical XY males or XX females, many people are intersex. Intersex people are born with both masculine and feminine body parts. Every intersex person is different, and the body …

Dec 14, 2023 · Sex chromosomes are chromosomes that affect your sexual anatomy and reproductive development. Most of us were raised with the idea that there are two sexes: male and female. We’re …

In humans, the presence of two X chromosomes (XX) typically leads to female development, while the presence of one X and one Y chromosome (XY) typically leads to male development.

Dec 29, 2024 · Discover the key differences between XX vs XY chromosomes in human genetics. Learn about their structure, functions, inheritance patterns, and related genetic disorders in this detailed guide.

Jan 23, 2024 · In this article, we’ll break down the differences and similarities between XX and XY chromosomes, explain how they shape human biology, and answer the most frequently asked …

Jan 30, 2025 · Sex chromosomes, known as X and Y, play a crucial role in genetics. Every human has a pair, which influences their biological traits. The presence of XX denotes female, while XY denotes …