Ti & Ri plasmid
HTML-код
- Опубликовано: 18 сен 2024
- Join my telegram group to get the pdf notes: t.me/BiologyBy...
For pdf notes and Book visit www.biologylec...
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.
Join my Telegram group for pdf notes & discussions 👇
t.me/BiologyByImtiyaz
Visit our website for complete pdf notes & book👇
www.biologylectures.com/
Seeing one day before exam for the second time... Very good & easy explanation... 👌
Glad to hear that
Very helpful 🙏
Glad it was helpful!
Thanks a lot......very smooth to understand 😊...God bless you
Best wishes Fauzia
Sir,You Are Best And Experienced Teacher Of GDCK,I Have Seen...Thank You Sir...❤
It's my pleasure Mohd.. best wishes
Great video. Made my concepts clearer
Best wishes
One the best video in this topic..great job👍
#Planetclasses
Thankyou sir for this much clear functions of each part of Ti- plasmid.
Best wishes
Sir u r superb got clear now
Best wishes Ruheel
Thanks you sir
Best wishes Shahina
Sir please upload more video lectures on economic botany and biotechnology
Sir..Great work...
Best wishes
thank u sir 🙏
Best wishes
Best Teacher! 🙌
Thank you! Hakima
Cant thank you enough sir!!
Best wishes
Good 👍
Thank you sir
Best wishes
12 step m adivating expression of auxin ke bad kya likha hua h?
Cytokinin... best wishes Ayushi
Thank you, sir🙏🙏
Best wishes
Thanku so much sir
Best wishes
Best lecture ⭐
Good teaching method sir.. thanku sir
Best wishes
Thank u...😀😀
Welcome 😊
Nicee :)
Best wishes nandini
Thanks sir
Thank u cmch sir
hєlp full vídєσ ..thαnku ímtíчαz ѕír
slm T DNA means transfer hai sir