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Fertilization

Definition

noun, plural: fertilizations

(biology)

(1) A process in sexual reproduction that involves the union of male (sperm) and female (ovum) gametes (each with a single, haploid set of chromosomes) to produce a diploid zygote.

(2) Fecundation or impregnation of animals and plants (e.g. by insemination and pollination, respectively).

(Science: agriculture) The enrichment of soil (generally by applying fertilizer or organic material) for crop production.


Supplement

(biology) Fertilization may be internal, when it occurs within the female body, or external, when it occurs outside. The process includes plasmogamy (the union of the cytoplasm of the gametes) followed by karyogamy (the union of the nuclei of two gametes).


Word origin: From the contraction of fertilize, fertiliz + -ation.

Related forms: fertilize (verb), fertilizational (adjective).
Related terms: fertilization in vitro, fertilization membrane, self-fertilization.

Synonym: fecundation, syngamy.


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Results from our forum


which mechanism triggers the first cell differentiation?

As far as i know , the cell differentiation is close related with two factors: time and location . As you know ,the differentiation began since the fertilization , later contact with neighboring cell can also lead to farther differentiation. I think the first differentiation is decided by gene , ...

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by summerliehu
Sun Oct 06, 2013 2:58 pm
 
Forum: Cell Biology
Topic: which mechanism triggers the first cell differentiation?
Replies: 4
Views: 2705

which mechanism triggers the first cell differentiation?

Hi, i think the mechanism that directs the initial stages of differentiation is inherent in the egg before fertilization. The egg carries certain proteins and mRNAs in sufficient amount that regulates the initial stages of development till the embryo is ready to carry out its ...

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by Fearnot
Fri Aug 09, 2013 3:50 pm
 
Forum: Cell Biology
Topic: which mechanism triggers the first cell differentiation?
Replies: 4
Views: 2705

which mechanism triggers the first cell differentiation?

Hi, i think the mechanism that directs the initial stages of differentiation is inherent in the egg before fertilization. The egg carries certain proteins and mRNAs in sufficient amount that regulates the initial stages of development till the embryo is ready to carry out its ...

See entire post
by Fearnot
Fri Aug 09, 2013 3:48 pm
 
Forum: Cell Biology
Topic: which mechanism triggers the first cell differentiation?
Replies: 4
Views: 2705

Concept of sexuality in plants.

... are hermaphrodites, so they have both male and female parts. Are there any plants that have no concept of Male and Female, i.e - There is no fertilization involved at all, and all parts of the plant are asexual? I was also wondering, if seeds have a gender? If they do, within the same fruit, ...

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by pavankasi
Tue Jul 30, 2013 11:28 am
 
Forum: Botany Discussion
Topic: Concept of sexuality in plants.
Replies: 3
Views: 2150

which mechanism triggers the first cell differentiation?

... what exactly makes it so that starting from a given division cells suddenly start to be different. Wikipedia claims that In the first hours after fertilization, this cell divides into identical cells. In humans, approximately four days after fertilization and after several cycles of cell division, ...

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by WoJ
Mon Jul 22, 2013 6:18 pm
 
Forum: Cell Biology
Topic: which mechanism triggers the first cell differentiation?
Replies: 4
Views: 2705
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