fusion of sperm and ovum takes place in spermatozoon.
fusion of sperm and ovum takes place in spermatozoon.
fusion of sperm and ovum takes place in?
spermatozoon
the acrosomal reaction normally takes place in the ampulla of the fallopian tube (site of fertilization) when the sperm penetrates the secondary oocyte. a few events precede the actual "acrosome reaction". the sperm cell acquires a "hyperactive motility pattern" by which its flagellum produces vigorous whip-like movements that propel the sperm through the cervical canal and uterine cavity, until it reaches the isthmus of the fallopian tube. the sperm approaches the ovum in the ampulla of the fallopian tube with the help of various mechanisms, including chemotaxis. glycoproteins on the outer surface of the sperm then bind with glycoproteins on the zona pellucida of the ovum.
acrosome reaction
section::::fusion.









































after the sperm enters the cytoplasm of the oocyte (also called ovocyte), the tail and the outer coating of the sperm disintegrate and the cortical reaction takes place, preventing other sperm from fertilizing the same egg. the oocyte now undergoes its second meiotic division producing the haploid ovum and releasing a polar body. the sperm nucleus then fuses with the ovum, enabling fusion of their genetic material.









































section::::fusion.:cell membranes.









































the fusion of cell membranes of the secondary oocyte and sperm takes place.









































section::::fusion.:transformations.
human fertilization