Conjugation in Bacteria

In this video, Biology Professor (Twitter: @DrWhitneyHolden) discusses the process of conjugation in bacteria, a cool way that bacteria can obtain foreign DNA for their own use with a cell structure called a sex pilus. For information on other mechanisms that bacteria use to take up foreign DNA, see Biology Professor's videos on transformation ( • Transformation in Bact... ) and transduction ( • Transduction ). Great for MCAT Biology Review!

[@emily-fv3fl]

Thank you for sharing your talent of teaching. Many people are experts at topics like this, but very, very, very, few professors are capable of explaining and teaching scientific topics. Your videos have helped me understand and become more interested in microbiology.

[@kaydian123]

Your way of explaining conjugation has allowed me to finally understand conjugation!! Thank you very much for your time, effort and amazing teaching skills!!! May the Lord continue to bless and prosper you and your family.

[@animagicalx]

god bless this woman! i now understand it all :) thanks!!

[@sabrenablackwood4516]

+animagicalx ikr!!

[@BiologyProfessor]

+Jitin Mathew, There is already a great video on KZbin about DNA Fingerprinting. Here is the link: kzbin.info/www/bejne/epO1aquDjdp-bcU

[@sabrenablackwood4516]

wow ur awesome!! i've been having a difficult time understanding these three processes from my teacher and books and this one video made everything clear. why cant every teacher be like u! :)

[@katie3298]

you did a great job explaining this, thank you! i have acquired a much better understanding of the subject.

[@ILoveArt]

You explain it so well. Thank you!

[@Wanjiku.x]

God bless you sis , you broke it down so well for me to understand

[@Ashley-xd1vm]

I thank you kindly for your help and understanding

[@nathanhanson5324]

What a clear explanation. Thank you.

[@sandromentetzides2530]

Great explanation. Thank you!

[@yonelantsangani4356]

Great job explaining. Thank you.

[@sambhunathbanerjee7142]

Thanks a million!!! Your explanations made this crystal clear conception.

[@caitlynpaige7645]

You teach me more in one video that my crappy professor does in an entire semester.

[@satyapati5264]

Hey

[@flygoddess]

You are absolutely wonderful.

[@natashabrooks6822]

Thank you for this video it help clear up a lot.

[@anvitomer3443]

Amazing lecture Ur saving my life here- THANKS :)))

[@chamodkavishka001]

Good explanation ❣️ Thank you very much 🥰

[@taragraham222]

Thank you! This was helpful

[@freydun]

amazing video. thank you very much.

[@katherinezurita5848]

Awesome video!!

[@amjadcreation7545]

Good teacher

[@sinemguclukol1932]

thank you!

[@Dani-ms7xk]

Great Video! Thank You!

[@BiologyProfessor]

You are welcome:)

[@brittanym1326]

Super helpful Thanks!

[@farooqahmedahmed9702]

Thanks a lot

[@aller8506]

thanks you're a good master

[@susanamachuca7088]

thank you sooooo much.!!!!

[@1028wash]

Much Thanks!

[@Rihab123-j9m]

God bless you for your videos they help me so well 💌💝

[@adriennef1827]

great video!

[@omajed100]

Thanks a lot...

[@kong3727]

thank you , i have done my homework

[@mingmingandmikki]

Thank you, the explanation is great! I have a question though, if a F plus cell can make a sex pilus,is it possible that other plasmids or even the chromosome of that f plus bacterium be copies onto the paired bacterium instead of the fertility plasmid?

[@BiologyProfessor]

That’s a great question. I don’t know how often it would happen, but I assume that other genetic material could hitch a ride this way.

[@kashifabbasiabbasi5388]

moreover madam, donar cell works proton excessive as acidic medium, recipient as excessive electrons works as basic medium ,,is this classification correct???please guide

[@braebrae8802]

thank you thank you thank you!!!

[@worldinformationandtrustin1323]

Nice and good

[@DarrellRJr]

Thank you

[@chrish7583]

I"m confused. So, what happens to the fertility plasmid once everything moves from the Hfr cell to the F- cell? Does the plasmid just go away?

[@BiologyProfessor]

Not everything moves from the Hfr cell to the F- cell. The Hfr cell replicates part of its chromosome, and sends just that part to the F- cell through the sex pilus. The original plasmid portion remains integrated into the Hfr cell's chromosome and the part of the Hfr cell's chromosome that moves into the F- cell recombines with the F- cell's chromosome (via homologous recombination), replacing part of the F- cell's chromosome with part of the Hfr cell's chromosome. The resulting F- cell is still F- (no DNA from the plasmid), but it is a recombinant cell carrying DNA from the Hfr cell. You can read more about this here: academic.pgcc.edu/~kroberts/Lecture/Chapter%207/horizontal.html

[@taragraham222]

@@BiologyProfessor Why would the fertility plasmid portion replicate if it is not being utilized and sent to the F- cell?

[@GTStuning-]

Very pretty and smart..Thank you

[@manohardhangar4735]

Hy I love you mem really I like your study style

[@Snowdep]

awesome but one things that really sucks is that the audio of the video is not clear and high frequent, rest if fine and osm.👏👏👏

[@chaosawaits]

8:38 You show the Hfr cell distributing red DNA into the F- cell but then say that the F- cell remains F- because it didn't get any of the fertility plasmid, which was coded red?

[@BiologyProfessor]

Not everything moves from the Hfr cell to the F- cell. The Hfr cell replicates part of its chromosome, and sends just that part to the F- cell through the sex pilus (so I should have drawn it in black, not red). The original plasmid portion remains integrated into the Hfr cell's chromosome and the part of the Hfr cell's chromosome that moves into the F- cell recombines with the F- cell's chromosome (via homologous recombination), replacing part of the F- cell's chromosome with part of the Hfr cell's chromosome. The resulting F- cell is still F- (no DNA from the original plasmid), but it is a recombinant cell carrying other DNA from the Hfr cell. You can read more about this here: academic.pgcc.edu/~kroberts/Lecture/Chapter%207/horizontal.html

[@Flamenfire]

you are the one

[@hidayatullah6740]

thanks mam!

[@narjissaji3255]

thanks 😘

[@mananvmanan]

Ma'am I have a doubt...does the replication of the f-plasmid takes place after entering the recipient cell or in the donor cell?

[@BiologyProfessor]

In the donor cell

[@zainabalradi2306]

I love this

[@godfreymnyandwa8745]

God bless you ✊✊👍👍

[@nikhilmittal4262]

Thankyou

[@kashifabbasiabbasi5388]

moreover, if we stop eating then plasmid formation, transduction, conjugation will all stop...please comment

[@romaissamekhenef4916]

thank uuuuu.🌷

[@jitinmathew6951]

please upload a video on dna fingerprinting

[@samipjoshi8873]

Thanks mam...👌👌🖒🖒🖒 from nepal

[@rightlearning6271]

Mam upload videos on practical of microbiology

[@BiologyProfessor]

Check out my playlist on microbiology practical lab skills: kzbin.info/aero/PLjMo-ys5HQIY2ZL8FDSoabCy4gH9D9rbd

[@tahirtantary7438]

Nice madam

[@shantanukumar156]

Wow....

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Thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@stillpool7385]

Love u😍

[@sharjeeltaufique787]

Thanku from Pakistan

[@kimberlyuzhca6047]

poor choice of colors, but a good explanation!

[@englishpoempoetry1411]

Mame you are so sweet ❤️

[@mudassirkhan9714]

so cute professor

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Lmfao xD

[@Airy718]

Thank you! It sucks, they don't pay teachers enough! We're getting more and more stuck with people who completely lack this talent, and instead those who desperately need a job as long it's in their field. While those who were educated to teach, get more and more frustrated and look for higher wage jobs. It's the worse in k-12, because they hire teachers to teach completely different topics than they were actually educated to do. For instance, an english major teaching mathematics, a gymnast professional teaching science, an IT major teaching english or science. Frustrating

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reaily i love u...

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Love u

[@meriemmesnata567]

You are so beautiful i can not anderstand because i do not listen i just see you you are great very beautuful

[@SANAKHAN-il9qh]

thank u for this u made it easy than my teacher probably explnd me in d class #dahhh

[@rosehoseiny6812]

the voice is tooo low

[@firstaid1883]

+rose hoseiny then turn ur volume up. jesus people complain too much

[@ravikumarkommareddy]

Easy to understand but had a difficulty to listen. Quite time required. Please make videos more audible.

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Luv you r 2 beautiful

[@mrrabbit6680]

Thanks this video was so helpful!!!!