Name the hormone in female that is produced by ovaries and helps in development of mammary glands.

The hormone produced by the ovaries in females that plays a crucial role in the development of mammary glands is estrogen.

Estrogen is a group of hormones that are vital for regulating various functions in the female body. During puberty, estrogen levels increase significantly, which leads to the development of secondary sexual characteristics, including the growth of breast tissue and mammary glands.

In addition to its role in breast development, estrogen is also involved in the menstrual cycle, maintaining the health of the reproductive system, and supporting bone health. In pregnant women, the levels of estrogen increase even further to support fetal development and prepare the body for breastfeeding.

The balance of estrogen, along with other hormones like progesterone, is essential for normal reproductive health and function in women.