features that are in all 3 -bacteria, archaea, and eucarya??

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

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xxmicroxx
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features that are in all 3 -bacteria, archaea, and eucarya??

Post by xxmicroxx » Mon Mar 13, 2006 10:31 pm

Can some please help me list some FEATURES that are relevant in ALL of the three domains - Bacteria, Archaea, and Eucarya?

Any and all help is very much appreciated!!! =)

kiekyon
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Post by kiekyon » Sat Mar 25, 2006 4:29 am

i think the transcription and translation process occur in all of them

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damien james
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Post by damien james » Sat Mar 25, 2006 5:19 pm

Also morphological characteristics. Membranes, DNA, proteins, etc.
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Post by kiekyon » Sun Mar 26, 2006 8:19 am

not DNA, some contain only RNA

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MrMistery
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Post by MrMistery » Sun Mar 26, 2006 8:06 pm

only RNA? Maybe some ultraspecialised eukaryotic cells like red blood cells in mammals.
But generally, all cells contain DNA

To answer the original question. Basically, what you are looking for are the characterstics of life. Search the forum. they have been listed.
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Post by kiekyon » Tue Mar 28, 2006 2:11 am

i'm thinking of some viruses
but, i guess they are not in any of these three domains

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MrMistery
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Post by MrMistery » Tue Mar 28, 2006 6:16 pm

It's viri actually. And they are not regarded as living organisms..
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Post by Plymouth John » Wed Mar 29, 2006 3:52 pm

I've never seen the word "viri" before. I'm doing an MSc in virology and our core textbook is "Viruses and Human Disease" by Strauss and Strauss! Published by Academic Press - surely they'd pick up a mistake in the title.

The two main characteristics of all living cells are metabolism and reproduction. There are probably more.

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Post by Poison » Wed Mar 29, 2006 9:37 pm

I think he meant "virii". Plural of virus. Am I wrong? As much as I know both "viruses" and "virii" terms are used.
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