The 23rd chromosome pair decides if you'll be male or female.
Your mom always gives an X chromosome. Your dad either gifts an X or Y. So, Dad’s the wildcard!
💡 Real-World Example: Think of Mom as always giving you socks for Christmas (useful but predictable), and Dad is the guy who might give you socks OR a skateboard!
Smaller, with centromere near one end.
55 genes, many unique to males.
💡 Real-World Example: Think of the X chromosome as the Swiss Army knife (super versatile), while the Y chromosome is like a specialized tool—good for a specific job, like being a male!
Klinefelter's Syndrome: XXY --> Develops as a male
Turner’s Syndrome: X0 --> Develops as a female
💡 Real-World Example: Imagine having a cake recipe. For a basic cake (female), you need the base ingredients. If you add extra frosting (Y chromosome), it becomes a boy cake!
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The 23rd chromosome pair decides if you'll be male or female.
Your mom always gives an X chromosome. Your dad either gifts an X or Y. So, Dad’s the wildcard!
💡 Real-World Example: Think of Mom as always giving you socks for Christmas (useful but predictable), and Dad is the guy who might give you socks OR a skateboard!
Smaller, with centromere near one end.
55 genes, many unique to males.
💡 Real-World Example: Think of the X chromosome as the Swiss Army knife (super versatile), while the Y chromosome is like a specialized tool—good for a specific job, like being a male!
Klinefelter's Syndrome: XXY --> Develops as a male
Turner’s Syndrome: X0 --> Develops as a female
💡 Real-World Example: Imagine having a cake recipe. For a basic cake (female), you need the base ingredients. If you add extra frosting (Y chromosome), it becomes a boy cake!
Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟