Class (30) = Mutation (Part 02) | Chromosomal Mutation & Application of Mutation in Medicinal Plant

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Mutation (Types of Mutation- Gene Mutation) Part 01 studio.youtube...
Chromosomes are thread-like structures where the genetic material DNA is packaged. They are located in the nucleus of cells and undergo condensation before cell division. Like any other processes, the chromosome may encounter random genetic changes or be affected by it. This kind of chromosomal mutation usually occurs during any errors in cell division.
Structural chromosomal mutations are classified into four:
1.Deletion
2.Duplication
3. Inversion
4. Translocation (or shift places).
1. Deletion
This type of mutation occurs when a part of the DNA is not duplicated or is lost during DNA replication. The size of this region can either be a mere nucleotide or can be large as an entire chromosome.
2. Duplication
This type of mutation occurs when an extra copy of a region (or regions) in the DNA is produced.
3. Inversion
During inversion, a portion in the chromosome is reversed and gets inserted back into the chromosome.
4. Translocation
Translocation happens when a fragmented chromosome tends to join with a nonhomologous chromosome. This newly-formed segment then detaches from the chromosome and moves to a new position on another chromosome.
Spontaneous Mutation. Spontaneous mutations are the result of errors in natural biological processes
Induced mutations are due to agents in the environment that cause changes in DNA structure. The agents used for mutation is called mutagens
Tyeos of Mutagens
1. Physical Mutagens : Ionizing radiation X rays, Alpha, Beta, Gamma Radiation
Non ionizing radiation : UV radiation
2.Chemical Mutagens
Alkylating and Hydroxylating agent
Nitrogen and Sulphur mustard, Methyl methane sulphonate, Ethyl methane sulphonate, Nitrous acid, Acridine, 5- bromouracil, Formaldehyde
Application of plant mutation
1. Mutation causes morphological, anatomical and chemical changes in plant
2. Building resistance of a medicinal plant towards certain disease.
3. Favorable changes increases the yield and active constituent in plant.
4. For the improvement of crop
5. Development of new varities.
Examples
Dioscorea speceies- Tuber yield and disogenin content increases by muation indiced by radiation
Capsicum seed (Capsicum annum) treated with so
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[@eyshajam6980]

Miss no words for you so good and well explained!!!
You are a pro teacher 👩‍🏫

[@anilbattan9]

Thanks mam nice explained

[@kKKusum7]

Thank you ma'am

[@soumyajitdeb6707]

thank you mam you helped me in this tough situation, very well explained

[@alokverma7083]

Thank u so much Mam and thanku @solution pharmacy

[@trioSaN328]

Ma'am can you please upload the imp. Sample ppr of all the units side by side as Lyk cology ....... So through those sample QSTnx we got the lil bit idea about imp. Topics nd a quick and easy way of revision

[@solutionpharmacy]

Sure.

[@masrurakhatun4765]

Thanku mam for the deliver auspicious lecture 🖤🖤

[@anjalapandedurgapal1199]

well explained

[@sreelakshmi9369]

Thank u mam excellent explanation☺🤩

[@yashvantsingh5362]

Maim cytokine topics Bata dijiye...

[@Khushisaini2643]

Ty mam

[@baldevbaldev4990]

Very Very Thanx Mam

[@alphagonist4748]

Thanks

[@bushrakhan8905]

Mam plz make video on unit 3 or 4 plz

[@kanchankuralkar7661]

Can you provide notes of this asap

[@solutionpharmacy]

Sorry we dont have notes. She made this video so that every one may make notes of it.

[@krishsoni3283]

Mam chromosome abrration or chromose mutation ....ek hi hai kya

[@PRIYANKAKUMARI-ps1xh]

Mam chromosomal aberratio ka video upload kijiye..

[@artisticduniya8428]

Mam plz alkylating agent as mutagen and anticancerous pe ek lecture bna dijie jldi se

[@nityaakumari8504]

🙏🙏🙏for part 1 & 2

[@lavikashiv748]

Can u plz upload unit 3 of pharmacognosy

[@solutionpharmacy]

Yes we will

[@lavikashiv748]

@@solutionpharmacy when ?? As our exams are near I want to study bcz u explain very well...plz upload unit 4 also

[@JaiHind-lb4bm]

Nice mam
But thoda chota likha he

[@Bollywood_songs9922]

Refrence of that point

[@RahulKumar-tr1hb]

Video थोड़ा छोटा किजीए
Mam

[@subashbohara7842]

Ja ki film dekho lecture nahi

[@jayupatil5901]

Thanks ma'am