Bacteria transfer genes by conjugation, transduction, and transfo...

Question

Bacteria transfer genes by conjugation, transduction, and transformation. Compare and contrast these mechanisms. In your answer, identify which if any processes involve homologous recombination and which if any do not.

Accepted Answer

Hi, everyone. Welcome back. Here's our next problem. It says blank refers to the transfer of genes and bacteria which involves homologous as well as non homologous recombination. And our answer choices are a transduction B translocation c conjugation or D all of the above. So we do have that possibility of more than one correct answer. Well, let's just recall from our content video. What homologous versus nonhomologous recoin combination is we can look at that prefix homo, meaning sane and homologous recombination occurs when two pieces of DNA have similar sequences. They're not completely complementary, but they've got enough similarity in the base pairs. So they pair up and then can recombine can swap. Whereas nonhomologous, as you can guess from, its name does not involve similar DNA sequences. So these two different methods of recombination. One that involves similar sequences pairing up and one that doesn't, which type of transfer of genes involves both of these. So let's look through our answer choices while transduction involves viruses, bacteria, phages transferring some of their DNA to a bacteria. And these can involve both homologous and non homologous recombination. So that is a correct answer. I'm just gonna put A dot Since we might have more than one choice B is translocation and translocation is when a piece of one chromosome gets attached to another chromosome. And that can also happen in homologous or non rec or non homologous ways. So homologous, it can switch with another part of another chromosome or it can just become integrated into another chromosome. So that's also correct. Now, if I were on a test, I'd go ahead and pick choice D as my answer. All of the above because I've now got more than one correct answer. But to be thorough, we'll look here at choice. C conjugation and conjugation involves two bacterial cells that get joined by a tube DNA gets transferred through that. And that can also involve homologous or nonhomologous. You can have just a plasmid um coming over, you can have meeting up of similar sequences as the DNA gets transferred to the other cell. So, conjugation also involves both types of recombination. So our answer here as to which refers to the transfer of genes and bacteria, which involves homologous as well as non homologous recombination is choice D all of the above. See you in the next video.

Struggling with Genetics?

Bacteria transfer genes by conjugation, transduction, and transformation. Compare and contrast these mechanisms. In your answer, identify which if any processes involve homologous recombination and which if any do not.

Watch next

Bacterial Conjugation practice set