If you were PLASMID,you would ??

Question

1. A- Be able to reproduce by conjugation
B- Serve no useful puroduce by conjugation
C- Form a little circle and reproduce on your own
D- Eventually be reincorporated into your original nucleotise sequence.

my answer was ( c ) and i don't know why but i changed it to ( a ) an that was wrong .

Answer 1

Bacteria Boy is back.
The answer is C. A plasmid is a circle of extra-chromosomal DNA, that is to say, DNA that is notm kept in the genome. They control their own reproduction, and there can be many copies of the same plasmid inside one cell. That is why C is correct. A is incorrect because conjugation is the process by which bacteria swap plasmids.

Hope that helps you

Answer 2

Answer C: some bacteria can have linear plasmids ( Streptomyces for example, see link below for publications)

Answer A : Conjugation doesn't remove the plasmid from one cell and insert it into another. Circular plasmids usually replicate by theta form replication, which basically turns 1 circular plasmid into 2 by replicating both strands in both directions. Some plasmids replicate by rolling circle, in which 1 strand is "peeled" away and replicated. During conjugation, the newly formed strand can be sent through the conjugation machinery (in linear form) into a new cell where it circularizes and gives the new cell a functioning plasmi (reference below)

I am not a fan of wikipedia, but I'm supposed to be working so I can't find more agreeable sources. Anyhow, you should be able to argue the question with your professor or teacher and get credit for it.

Also, in terms of sloppy question asking, plasmids don't reproduce on their own, they require the replication machinery of the host cell. They might encode some vital replication proteins, but they use chromosomally encoded DNA polymerase.

So you might really be able to argue that C is not correct due to its wording. Also, sadly, not all plasmids can replicate by conjugation, so A isn't 100% right either. Oh well, sorry I'm not more help :P

Answer 3

The answer is C.

A plasmid is a DNA molecule separate from the chromosomal DNA and capable of autonomous replication. It is typically circular and double-stranded. It usually occurs in bacteria, sometimes in eukaryotic organisms (e.g., the 2-micrometre-ring in Saccharomyces cerevisiae).

Answer 4

it can be everything except B plasmids are transferred in conjugation, they can reproduce on their own, they can be incoporated into the bigger circular chromosome