Fertilization Paper - Fertilization is the process in which...

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Fertilization is the process in which the gamete egg from the female and the gamete sperm from the male fuse to form a zygote inside the female. The egg has an extracellular matrix consisting of glycoproteins called the zona pellucida. When a sperm binds to the zona pellucida the acrosomal reaction begins take place. The acrosome contains digestive enzymes that initiate the dissolution of the zona pellucida protecting the egg and allowing the sperms plasma membrane to fuse with the eggs plasma membrane. The fusion of these two membranes creates an opening and the sperm nucleus, centriole, and flagellum to enter the oocyte into the ovum. The nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome. This leads to the formation of a diploid cell called a zygote. The zygote divides to form a blastocyst implants in the endometrium inside the uterus and begins pregnancy.
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