Egg polarity is the orientation of the egg. In developmental biology, all animal eggs have 2 poles one is anterior animal pole and the other is posterior vegetal pole, these poles are connected by the axis of the egg. The plane that bisects the main axis at right angle is the equitorial plane. Cytoplasmic determinants are molecules essential during oocyte matuaration in the ovary of female and may control gene expression. These are present in the region of egg\'s cytoplasm whcih results in included in the blastomeres. Dorso-ventral and Antero-posterior axis are established in egg and embryo by maternal effect genes (egg-polarity genes). In the early embroyonic development, cytoplasmic determinants already present in unfertilised egg encoded by mother\'s egg-polarity genes and these genes encode proteins that are existing in the egg while still in the mother\'s ovary. Solution Egg polarity is the orientation of the egg. In developmental biology, all animal eggs have 2 poles one is anterior animal pole and the other is posterior vegetal pole, these poles are connected by the axis of the egg. The plane that bisects the main axis at right angle is the equitorial plane. Cytoplasmic determinants are molecules essential during oocyte matuaration in the ovary of female and may control gene expression. These are present in the region of egg\'s cytoplasm whcih results in included in the blastomeres. Dorso-ventral and Antero-posterior axis are established in egg and embryo by maternal effect genes (egg-polarity genes). In the early embroyonic development, cytoplasmic determinants already present in unfertilised egg encoded by mother\'s egg-polarity genes and these genes encode proteins that are existing in the egg while still in the mother\'s ovary..