Dictionary » G » Gamete

Gamete

Definition

noun, plural: gametes

(1) A reproductive cell or sex cell that contains the haploid set of chromosomes, e.g. spermatozoon or sperm cell (male reproductive cell) and egg cell or ovum (female reproductive cell).

(2) A mature haploid reproductive cell as produced by gametogenesis, a process involving meiosis

(3) A cell that fuses with another reproductive cell of the opposite sex during fertilization forming a zygote that develops into a new individual.


Supplement

In certain organisms, like humans, there are two morphologically distinct types of gametes: the male gamete (sperm cell) which is generally smaller and motile and the female gamete (ovum) which is larger and nonmotile. This condition is called anisogamy, or heterogamy, wherein the female and male gametes are of different sizes. Isogamy, in contrast, is the condition wherein both sexes are of the same size.


Word origin: Ancient Greek γαμετης; translated gamete = wife, gametes = husband.

Derived terms: gametic (adjective), gametocyte (noun), gametophyte (noun), gametophobia (noun).

Synonym: sex cell, reproductive cell.
See also: gametogenesis, meiosis, syngamy.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re: Human Gamete Compatibility Going Backwards

By 'compatible' I mean able to form a zygote that results in a fertile , viable offspring. my emphasis

See entire post
by JackBean
Fri Jan 17, 2014 10:07 am
 
Forum: Evolution
Topic: Human Gamete Compatibility Going Backwards
Replies: 5
Views: 1676

Human Gamete Compatibility Going Backwards

If one could take a human gamete from today and 'test' it for compatibility against every birth of every creature starting at the most recent birth and going backward in time, would one reach a first-to-produce a compatible gamete individual? ...

See entire post
by BiologicalRush
Thu Jan 02, 2014 7:08 pm
 
Forum: Evolution
Topic: Human Gamete Compatibility Going Backwards
Replies: 5
Views: 1676

Re: Am I the Next Step in Human Evolution?

... in survival and reproduction, than yes, overtime the genes which help in such pursuits will be passed on if they make it into the fertilizing gamete. But there is no guarantee of this. And I don't think what you are experiencing is so rare so it could very well be the result of selection.

See entire post
by badgertoes
Sat Dec 28, 2013 8:31 am
 
Forum: Evolution
Topic: Am I the Next Step in Human Evolution?
Replies: 23
Views: 23981

Need some help segregation - independent assortment!!!

... of alleles for a particular trait. These alleles are present on homologous chromosomes. Segregation means that these alleles are separated during gamete formation and there is only one allele in a gamete, not both. Independent assortment states that one allele does not affect the assortment (into ...

See entire post
by supersapien
Fri Nov 29, 2013 2:36 am
 
Forum: Genetics
Topic: Need some help segregation - independent assortment!!!
Replies: 1
Views: 1343

meiome and genome

... chromosomes in the new zygote. But there is a lot of RNA involved? A crowd of unique proteins and mRNA in addition to the chromosomes in the gamete? See this: It is also noteworthy that during meiosis, specific genes are more highly transcribed, and these are called the meiome, the term used ...

See entire post
by mattw
Sun May 05, 2013 2:58 am
 
Forum: Genetics
Topic: meiome and genome
Replies: 0
Views: 1778
View all matching forum results

This page was last modified 23:47, 10 May 2009. This page has been accessed 347,122 times. 
What links here | Related changes | Permanent link