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isogamy

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isogamy
isogamy Biol. (aɪˈsɒgəmɪ) [f. iso- + Gr. γάµος, -γαµια marriage.] The union of two equal and similar ‘gametes’ or cells in reproduction, as in conjugation. So isogamete (aɪˈsɒgəmiːt) [Gr. γαµέτης, γαµετή spouse], each of the two uniting cells, in isogamy. isogamous (aɪˈsɒgəməs) a., characterized by ... Oxford English Dictionary
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Isogamy
Evolution It is generally accepted that isogamy is an ancestral state for anisogamy and that isogamy was the first stage in the evolution of sexual reproduction Isogamy is the norm in unicellular eukaryote species, although it is possible that isogamy is evolutionarily stable in multicellular species. wikipedia.org
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What is most ancestral: isogamy or anisogamy? Sexual reproduction can be feasible with anisogamy (gametes of different sizes i.e. genders) or isogamy (gametes of same size i.e. mating types) or with undifferentiated g...
As stated here the first sexual reproduction seems to be isogamy, which's purpose was likely to repair the DNA, as a damaged cell could repair its' (DNA
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Oogamy
Evolution It is generally accepted that isogamy is the ancestral state and that oogamy evolves from isogamy through anisogamy. See also Gamete Anisogamy Isogamy References Reproductive system Germ cells wikipedia.org
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Homogamy
(sociology), marriage between individuals who are, in some culturally important way, similar to each other See also Cleistogamy Endogamy Heterogamy Isogamy wikipedia.org
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oogamous
oogamous, a. Biol. (əʊˈɒgəməs) [f. oo- + Gr. γάµ-ος marriage + -ous.] Applied to organisms which reproduce (or to reproduction) by union of dissimilar (male and female) cells; spec. when one of these (the female cell or ovum) is stationary and fertilized by the motile male cell. So oogamete (əʊˈɒgəm... Oxford English Dictionary
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Anisogamy
Anisogamy most likely evolved from isogamy. There is then a relatively sound theory base for understanding this fundamental transition from isogamy to anisogamy in the evolution of reproduction, wikipedia.org
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anisogamy is the difference between _______ and
It most likely evolved from isogamy and is viewed as the evolutionary origin of male and female sexes.
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Gametogamy
According to its morphology, size and other properties, most forms of gametogamy are as follows: Isogamy (Ancient Greek ισο - iso= "equal + γάμος gámos See also Isogamy Heterogamy Apomixis References Reproduction Germ cells wikipedia.org
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hypergamy
hypergamy Anthrop. (haɪˈpɜːgəmɪ) [f. hyper- + -gamy.] A term first used by W. Coldstream, to denote the custom which forbids the marriage of a woman into a group of lower standing than her own; also transf., of any marriage with a partner of higher social standing. Hence hyˈpergamous a., pertaining ... Oxford English Dictionary
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Gametangium
Isogamous In isogamy, the gametes look alike and cannot be classified into "male" or "female." wikipedia.org
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Chlamydomonas
Chlamydomonas'''s asexual reproduction occurs by zoospores, aplanospores, hypnospores, or a palmella stage, while its sexual reproduction is through isogamy wikipedia.org
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Are there multicellular isogamous species? **Are there multicellular isogamous species?** Seeking through the examples of wikipedia I would tend to think that there are no multicellular isogamous species.
To investigate organelle inheritance in a multicellular organism with morphological isogamy, we studied the filamentous brown alga Ectocarpus siliculosus
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Pediastrum
As for the Sexual life cycle in Pediastrum, the cell forms two bi-flagellate gametes (isogamy), these then fuse into a zygote and develop further through wikipedia.org
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Volvulina
Sexual reproduction is by isogamy. References External links Volvulina - Description with pictures Chlamydomonadales genera Chlamydomonadales wikipedia.org
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