Thre are somany defenition for target site i cant answer if you don’t specify the area
In hormone
The endocrine glands release hormones into bloodstream to reach a particular body part called target site. The target site responds to the hormone.
The endocrine glands release the hormones into bloodstream to reach a particular body part called target site. The target site responds to the hormone and functions accordingly.
In DNA
Target site is the site where a restriction endonuclease cleaves a DNA molecule; usually the recognition site.