Morphogenesis

... with the construction of asymmetries within the oocyte and proceeds to pattern formation along the ... mRNA distributions A Drosophila oocyte is a polarized cell. The future ... that code for these differentially localized oocyte mRNAs are called maternal effect genes . They ...

Morphogenesis

... with the construction of asymmetries within the oocyte and proceeds to pattern formation along the ... mRNA distributions A Drosophila oocyte is a polarized cell. The future ... that code for these differentially localized oocyte mRNAs are called maternal effect genes . They ...

Capacitation

... spermatozoa and is required to render them competent to fertilize an oocyte . This step is a biochemical event; the sperm move normally and look ... do not require this capacitation step and are ready to fertilize an oocyte immediately after release from the male. Historically, the term ...

Glycoprotein

... as part of the adaptive immune response. Other examples of glycoproteins include: components of the zona pellucida , which surrounds the oocyte , and is important for sperm -egg interaction. Soluble glycoproteins often show a high viscosity , for example, in egg white and blood ...

Zona pellucida

... The zona pellucida is a glycoprotein matrix surrounding the plasma membrane of a mammalian oocyte . This structure binds spermatozoa , and is required to initiate the acrosome reaction . The zona glycoprotein, ZP3 , is responsible for sperm ...