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Re:Metagenomics

By: Cactus Flower in ALEA | Recommend this post (0)
Fri, 04 Jul 14 7:31 AM | 27 view(s)
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Msg. 15794 of 54959
(This msg. is a reply to 15793 by DigSpace)

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First, thanks! It's really exciting to have a chance to learn stuff.

Second, I didn't know that amoeba were once sexual. Until now I assumed they were and always had split. Over and over. Which makes them more-or-less the biological equivalent of digital information. Assuming existence of nutrient rich environment, endless ability to replicate with more or less perfect accuracy.

That's an interesting notion. Does it ever end? Does an amoeba remember, in a manner of speaking, its beginning and its history?

Also, how does something switch from being sexual to being asexual?


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The above is a reply to the following message:
Re: "Metagenomics"
By: DigSpace
in ALEA
Fri, 04 Jul 14 6:11 AM
Msg. 15793 of 54959

asexual reproduction in amoeba has for some time been considered rather noteworthy. Generally, eukaryotic reproduction is sexual, vegetative reproduction in plants notwithstanding.

My initial introduction to amoeba was like anybody else's. Later in laboratory medical microbiology training using the standard iodine methods, the thingy became more nasty in mind.

My understanding is genetic analysis has shown that amoeba are or recently were sexual just like the rest of us beasts.

(in my use of beasts and bugs; beast = eukaryote, bug = prokaryote, it was a distinction held to in gradual school, so the bugs often are binary fission types, and the beasts are almost always sexual, and hence why amoeba have been long regarded as unusual)


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