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Fertilization membrane

Definition

noun

The membrane that forms on the inner surface of the vitelline membrane of the ovum after the entry of a spermatozoon, thereby acting as a barrier to prevent additional penetration of other spermatozoa.


Supplement

The formation of this membrane around the fertilized ovum prevents multiple fertilization; a mechanism called slow block to polyspermy.


See also: monospermy.


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Re: Chromosomes And Heredity

... One complete set of chromosomes separate where re-formation of the membrane separates the cell into two new daughter cells. Each daughter cell contains the same genetic content as the parent cell. Fertilization is different. It is the process where meiosis has formed cells ...

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by DougB
Wed May 16, 2012 3:24 pm
 
Forum: Genetics
Topic: Chromosomes And Heredity
Replies: 4
Views: 7172

Chromosomes And Heredity

... to daughter-cell through the process of A. mitosis B. meiosis C. fertilization D. implantation E. gestation The meiosis, implantation and ... originally from different parents become enclosed in the same nuclear membrane, thus restoring the diploid number of chromomes. With these texts, ...

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by chikis
Wed May 16, 2012 10:31 am
 
Forum: Genetics
Topic: Chromosomes And Heredity
Replies: 4
Views: 7172

Origin Of Male/Female Gender

... end of the gonad. They mature in a syncytium--without complete plasma membranes that separate them from one another. The nucleus and cytoplasm are completely enclosed in a plasma membrane later, just prior to fertilization. After fertilization, the eggshell is added. Fertilization takes ...

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by GaryGaulin
Sat Jan 09, 2010 7:56 am
 
Forum: Evolution
Topic: Origin Of Male/Female Gender
Replies: 1
Views: 9671

Mammalian Gametes

... motility. The egg cell is full of maternal mRNA that are silenced till fertilization. It also has vesicles just under the plasma membrane that will release enzymes upon one sperm contact and prevent polyspermy from happening. ...

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by kolean
Wed Sep 02, 2009 10:41 pm
 
Forum: Cell Biology
Topic: Mammalian Gametes
Replies: 3
Views: 9049

vitelline membrane

is the vitelline membrane necessary for the normal development of the after fertilization? justify :oops:

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by cutie_kitty
Sun Jun 18, 2006 3:54 pm
 
Forum: Cell Biology
Topic: vitelline membrane
Replies: 0
Views: 1171
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