what is the name of the hormone which is responsible for female mammary glands?

Answer 1

estrogen, progesterone, oxytocin, and prolactin off the top of my head... oops also Human placental lactogen, and other hormones (insulin, thyroxine, cortisol) are also involved, but their roles are not yet well understood.

# Progesterone -- influences the growth in size of alveoli and lobes. Progesterone levels drop along with oestrogen levels after birth, triggering the onset of copious milk secretion.
# Oestrogen -- stimulates the ductule system to grow and become specific. Estrogen levels drop at delivery and remain low for the first several months of breastfeeding. (This is also why it is recommended that breastfeeding moms avoid oestrogen-based birth control methods while they are planning to breastfeed. A spike in oestrogen levels compromises a mother's milk supply level.)
# Prolactin -- contributes to the accelerated growth of the alveoli during pregnancy .
# Oxytocin -- contracts the smooth muscle of the uterus during birth, after birth, and during orgasm. After birth, oxytocin contracts the smooth muscle layer of band-like cells surrounding the alveoli to squeeze the newly-produced milk into the duct system. Oxytocin is necessary for a let-down, or milk ejection reflex, to occur.
# Human placental lactogen (HPL) -- HPL is released in large amounts by the placenta during pregnancy (beginning in the second month) that appears to be instrumental in breast, nipple, and areolar growth before birth.

Answer 2

estrogen for development.
oxitocin for lactation.

Answer 3

Go here and read this it will explain.
http://en.wikipedia.org/wiki/Mammary_gland

Answer 4

estrogen

Answer 5

estrogen...Best wishes

Answer 6

oxytocin