--%>
Assignment Help - homework help

Protection of female gametes from male gametes

Explain, how the male gametes go through the egg cell? How the female gametes guard itself from entry of more gametes after the first sperm cell?

E

Expert

Verified

Sperm cell which reaches the egg cell activates the acrosome reaction, a procedure where the hydrolytic enzymes of the acrosome are liberated on the external surface of zona pellucida (a protective layer that surrounds the egg cell). Portion of this layer is digested by acrosomal enzymes offering the sperm cell to arrive at the plasma membrane of the egg cell performing the fecundation.

At the moment, that sperm cell forms the contact with egg cell membrane a chemical alteration of this membrane takes place. Enzymes liberated by the exocytosis form the zona pellucida not capable to bind to other sperm cells and other male gametes are not able to enter the egg cell.

   Related Questions in Biology

  • Q : Cells The stage of meiosis where cells

    The stage of meiosis where cells become haploid

    		•
  • Q : Education-Charachetstic of

    This will be one of the major challenges, on the one hand, there is the challenge to meet the expectation of the highly educated with shrinking opportunities for promotion because of the downsizing and flattening so organizations, and on the other hand, there is the challenge of bringing employee

    		•
  • Q : Strategic Implications of 4P Write a

    Write a short description on the Strategic Implications of 4P's.

    		•
  • Q : Elastic fibers of the connective tissue

    Name the substance from which elastic fibers of the connective tissue are made up? What are various functions of such fibers?

    		•
  • Q : Define International Trade

    International Trade: It is the exchange of services or goods all along international borders. This kind of trade permits for a greater competition and more viable pricing in the market. The competition outcomes in more affordable products for consumer

    		•
  • Q : Chordate class Which chordate class is

    Which chordate class is considered as an example of transition of vertebrates from aquatic to the dry land environment?

    		•
  • Q : Mechanical digestion What do you mean

    What do you mean by mechanical digestion? In arthropods, molluscs, earthworms, vertebrates and birds, which organ participates respectively in this type of digestion?

    		•
  • Q : Define Corporate Administration Normal

    Normal 0

  • Q : Concept of Decentralization Expalin the

    Expalin the Concept of Decentralization and their advantages and disadvantages ?

    		•
  • Q : Define Bioavailability Define

    Define bioavailability: It refers to potential a product which has to be absorbed into the bloodstream and contain the desired impact on consumer. In another words, a product with very good quality raw materials however is made in such a manner that t

    		•