Question

Are bacterial genomes linear or circular?

Answer 1

Most prokaryotes, like bacteria, have a circular genome.

I didn't know that there were exceptions.
But apparently, there are.

Look at this article:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1796773/

Answer 2

Pasminds are per definition non-genomical DNA...

Answer 3

I did not know that! I thought that plasmids were still considered a part of their "genome."

I just know that plasmids aren't chromosomal DNA.

Answer 4

Well I have been thinking about it... and I tend to be unsure. I think that comment need a source for a such statement.

Answer 5

which Genome is circular to you guys bc i know plasmids are circular

Answer 6

extrachromosomal genome

Answer 7

Yeah we know that plasmids are circular.

We're just asking ourselves whether or not plasmids are considered a part of a bacterium's genome.

Answer 8

the statement above yours tells you what they are

Answer 9

Okay I have been talking with my professor in bacteriology and genetics and he say that plasmids are defined by being "non-essential extrachromosomal DNA, with no essential genes (unless selections pressure)". The bacterial genome however is the essential genes for regular growth and development. In other words plasmids are NOT a part of the bacterial genome.

Answer 10

okay thank you

Answer 11

Based off of research studies conducted in the past, bacteria genomes can be either linear or circular. You may have to double check on that. You can also check: http://tinyurl.com/c7ul32s