Ti & Ri plasmid

Join my telegram group to get the pdf notes: t.me/BiologyByImtiyaz
For pdf notes and Book visit www.biologylectures.com/
Agrobacterium tumeifaciens harbours a large circular DNA known as Ti plasmid, which exists as an independent extra chromosomal entity of 200 kb size. The most spectacular regions of Ti plasmid are the presence of T (transfer) DNA and vir regions. T-DNA carries genes responsible for conferring unlimited growth and ability to synthesise opines upon the transformed plant tissue. The genes responsible for T-DNA transfer are located in a separate part of the Ti plasmid called vir (virulence) segment.
#recombinantdnatechnology #biotechnology #biology #bscbotany #plasmid #1stsemesterexam #6thsemester #biotechnologyanditsapplications #neet
Virulence genes are unique regions and important components of both Ti and Ri plasmids. This region consists of at least ten organized operons of 35 kb. Most of these vir operons are involved in T-DNA transfer, but their physical attachment with T-DNA is not required essentially. At least twenty one vir genes are involved in virulence functions and organized into ten operons such as vir A, vir G, vir B, vir C, vir D1, D2, D4, vir E2, Vir F1, vir H and vir J/ACVB. Thus, Ti plasmid serves as a natural vector in genetic engineering of plant cells because it can transfer its T-DNA from the bacterium to the plant genome. The wild type Ti plasmids, however, are not suitable as vectors because of the presence of oncogenes in T-DNA which result in dis-organised growth in recipient plant cells.

[@BiologyByDr.Imtiyaz]

Join my Telegram group for pdf notes & discussions 👇
t.me/BiologyByImtiyaz
Visit our website for complete pdf notes & book👇
www.biologylectures.com/

[@sakshipariyani8558]

Seeing one day before exam for the second time... Very good & easy explanation... 👌

[@MOHDHUSSAIN7860.]

Sir,You Are Best And Experienced Teacher Of GDCK,I Have Seen...Thank You Sir...❤

[@BiologyByDr.Imtiyaz]

It's my pleasure Mohd.. best wishes

[@fauziasultana1226]

Thanks a lot......very smooth to understand 😊...God bless you

[@BiologyByDr.Imtiyaz]

Best wishes Fauzia

[@praveshthapliyal8309]

One the best video in this topic..great job👍

[@ZingClasses]

#Planetclasses

[@sreeparnanath4632]

Great video. Made my concepts clearer

[@BiologyByDr.Imtiyaz]

Best wishes

[@voraciouswithsakshi]

Thankyou sir for this much clear functions of each part of Ti- plasmid.

[@BiologyByDr.Imtiyaz]

Best wishes

[@Kashmir435]

Sir please upload more video lectures on economic botany and biotechnology

[@choureyharshi2268]

Very helpful 🙏

[@BiologyByDr.Imtiyaz]

Glad it was helpful!

[@lonerohie3722]

Best lecture ⭐

[@ruheelbhat1255]

Sir u r superb got clear now

[@BiologyByDr.Imtiyaz]

Best wishes Ruheel

[@hakimatabassum8708]

Best Teacher! 🙌

[@BiologyByDr.Imtiyaz]

Thank you! Hakima

[@hafsak2766]

Sir..Great work...

[@BiologyByDr.Imtiyaz]

Best wishes

[@viveknarayanan574]

Good 👍

[@fatimanissa4216]

Thanks sir

[@priyanka.8895]

thank u sir 🙏

[@BiologyByDr.Imtiyaz]

Best wishes

[@nandinidutta7240]

Cant thank you enough sir!!

[@BiologyByDr.Imtiyaz]

Best wishes

[@hamidabanoo7330]

Thank u cmch sir

[@Ayushhiiverma]

12 step m adivating expression of auxin ke bad kya likha hua h?

[@BiologyByDr.Imtiyaz]

Cytokinin... best wishes Ayushi

[@purbayanadhya2506]

Thank you, sir🙏🙏

[@BiologyByDr.Imtiyaz]

Best wishes

[@shahinabanooshahinabanoo6865]

Thanks you sir

[@BiologyByDr.Imtiyaz]

Best wishes Shahina

[@rinixetri9222]

Thank u...😀😀

[@BiologyByDr.Imtiyaz]

Welcome 😊

[@speakfreely7216]

Thanku so much sir

[@BiologyByDr.Imtiyaz]

Best wishes

[@aqellzyn5811]

slm T DNA means transfer hai sir

[@khatijaakhter6004]

hєlp full vídєσ ..thαnku ímtíчαz ѕír

[@nandinichaudhary2962]

Nicee :)

[@BiologyByDr.Imtiyaz]

Best wishes nandini

[@olyealiya3645]

Good teaching method sir.. thanku sir

[@BiologyByDr.Imtiyaz]

Best wishes

[@alex_258]

Thank you sir

[@BiologyByDr.Imtiyaz]

Best wishes