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?
Expert
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.
Why is the immediacy between ribosomes and amino acids significant for the protein formation? And also write down enzyme which catalyzes that reaction?
is the main transformation presented by the glomerular filtrate in comparison to the blood?
How antibodies work to neutralize the antigens?
Why uricotelic excretion is necessary for the avian and reptile embryos?
Farm accounting: Farm accounting such as business or financial accounting, deals solely along with record in relation to farming business. Is hence, any statement of dealings expressed in words and figures according farm book-keeper's record.
Explain the phenomenom of plasmolysis and how it can be used to determine osmotic pressure of cell sap
Give a brief explanation of immuno fluorescence.
How can amine groups be categorized?
Give a brief description of synthetic auxins and also write down their uses?
What are Elisa tests?
18,76,764
1957635 Asked
3,689
Active Tutors
1440631
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!