📖 what
What is the Y chromosome?
Quick Answer
The Y chromosome is one of the two human sex chromosomes and is typically associated with male biological development. It carries genes involved in sex determination and sperm production.
The Full Story
In humans, most females have two X chromosomes and most males have one X and one Y chromosome. The Y chromosome is much smaller than the X chromosome and contains relatively few genes. One of its best-known genes is SRY, which triggers pathways leading to testis development during embryonic growth. The Y chromosome is passed from father to son in most cases and is widely used in ancestry studies.
Key Facts
1.The human Y chromosome is much smaller than the X chromosome
2.SRY is a key sex-determining gene
3.It is usually passed from father to son
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"The chromosome that helps determine male development"
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