Here's why:
* Size: The Y chromosome is significantly smaller than other chromosomes, especially the X chromosome.
* Function: The Y chromosome primarily carries genes related to male sex determination and development.
* Limited Genes: While it does contain some genes involved in other functions, the Y chromosome has a limited number of genes compared to other chromosomes.
It's important to note that the exact number of genes on the Y chromosome varies depending on the source and the definition of a gene. However, it consistently has the fewest genes compared to the other chromosomes.
