00:01
What are the main differences and similarities between bacterial chromosomes and plasmids? a, they are both circular.
00:09
B, plasmids are less likely to be transferred during congregation because they're large size.
00:14
C, plasmids are important for biotechnology.
00:17
D, both have an origin of replication.
00:20
So both of these are forms of dna.
00:24
So if we draw a bacterium, first of all, they are both circular.
00:28
This is true.
00:30
So there's a single chronosome and this still.
00:33
All of the genes the bacterium needs to produce basic functions.
00:38
So the proteins that's going to put in its cell membrane, the trna and r rna genes, the genes for basic upkeep.
00:47
So primosome is sufficient for the bacterium to form and survive.
00:54
In most cases, because the plasmid, of which there can be multiple plasmids, multiple copies, will bring in other genes for things like alternative metabolism, like breaking down lactose, or for antibiotic resistance or virulence, that kind of thing.
01:13
So, virulence, metabolism, or antibiotic resistance.
01:21
All of these are options for plasmids.
01:23
So you can see they are optional in a way...