DNA Replication || Meselson and Stahl experiment || Class 12 || Neet Biology

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  • Опубліковано 27 гру 2024

КОМЕНТАРІ • 67

  • @LathaLatha-z1d7v
    @LathaLatha-z1d7v Рік тому +2

    One day you will become famous biology teacher in UA-cam

  • @Monicapd
    @Monicapd 4 роки тому +5

    Very interesting topic sir clearly explained 👍👌👏😊

  • @FLORA-oe5mi
    @FLORA-oe5mi 3 роки тому +2

    Good and best lecture.. easily understood..👌

  • @12-a1biopoojan6
    @12-a1biopoojan6 3 роки тому +4

    Such a clever teaching Anna thanks for uploading those wonderful conceptual ideas🙏🙏🙏🙏

  • @bairavivinayagam3623
    @bairavivinayagam3623 4 роки тому +2

    Super clear....

  • @9444875264
    @9444875264 2 роки тому +2

    Excellent explanation sir👏

  • @pandiyarajapandiyaraja6860
    @pandiyarajapandiyaraja6860 4 роки тому +2

    Eppadi Sir line by line marakkama soltringa. ..great Sir 👌👌👌

  • @wingsofart9361
    @wingsofart9361 2 роки тому +2

    Good explanation...

  • @r.darshanr.darshan7384
    @r.darshanr.darshan7384 Рік тому +2

    Thank you sir 😊

  • @saranyab7077
    @saranyab7077 3 роки тому +1

    Very useful sir and thank you sir

  • @yasodhap4429
    @yasodhap4429 4 роки тому +1

    Well done

  • @Kiruthika-j6v
    @Kiruthika-j6v 3 місяці тому +1

    Superb anna tq

  • @ashwi2729
    @ashwi2729 3 роки тому +1

    Sir you really awesome keep going sir and upload more videos for us

  • @jesijagan7352
    @jesijagan7352 3 роки тому +1

    Super anna nalla purithu....ungala mathiri teach pandravagalatha theeditu irunthen finally I got❤ I am your new subscriber....

  • @ajay.s192
    @ajay.s192 3 роки тому +2

    Supper sir❤️❤️❤️❤️

  • @NishiChals
    @NishiChals 3 роки тому +2

    Tnq sir..Very useful
    Love frm Kanyakumari

  • @selvamm2384
    @selvamm2384 3 роки тому +2

    Sir one doubt intermediate density and semi conservative are equal? Because semi conservative one parental DNA one newly DNA are combined .Same here for intermediate density.so both are equal or not....

    • @MAGESHBIOLOGY
      @MAGESHBIOLOGY  3 роки тому

      Good question... I didn't get proper experimental notes📝 about this even though I can give u answer but "verify it in google or standard book" In Semiconservative DND ( one Strand from parent, one is it's copy ) but in Intermediate DNA not like Semiconservative because both a strand have mixed DNA molecules so the composition may not be same. Hope u may understand

    • @selvamm2384
      @selvamm2384 3 роки тому +1

      Thank you sir. I can understand

  • @vinothini.v6561
    @vinothini.v6561 4 роки тому +7

    First like

  • @gamecentral4072
    @gamecentral4072 3 роки тому +1

    💪💪💪💪💖💖💖

  • @Sekarnrasi
    @Sekarnrasi 3 роки тому +4

    Sir apart from book .. give some more examples..this will be useful to us

  • @perumalk6499
    @perumalk6499 Рік тому +1

    Conservative method is not occurs ok.
    But zone formation formation for dispersive?
    Could you give clear idea?

    • @MAGESHBIOLOGY
      @MAGESHBIOLOGY  Рік тому +1

      In conservative DNA replication:
      Initiation: Replication begins at specific sites on the DNA molecule called origins of replication. Enzymes, such as helicase, unwind the double-stranded DNA, creating a replication bubble.
      Parental DNA Strands: In conservative replication, both the original parental DNA strands remain intact throughout the process.
      Synthesis of New Strands: Two new DNA strands are synthesized within the replication bubble. One of the new strands is synthesized continuously in the 5' to 3' direction, called the leading strand. This occurs in the same direction as the movement of the replication fork. The other new strand, known as the lagging strand, is synthesized discontinuously in the opposite direction (3' to 5'), creating short fragments called Okazaki fragments.
      Completion: Once the new DNA strands are synthesized, DNA ligase seals any gaps in the sugar-phosphate backbone, joining the Okazaki fragments on the lagging strand. This process results in two complete double-stranded DNA molecules, each composed of one parental and one newly synthesized strand.
      Conservative replication was proposed as a possible mechanism for DNA replication in the early days of research, but experimental evidence later supported the semi-conservative model as the correct representation of DNA replication in most organisms. In the semi-conservative model, one parental strand is conserved in each of the two new DNA molecules. Dispersive replication, on the other hand, proposes that the parental and newly synthesized DNA segments are interspersed and not conserved in their entirety.

  • @ammukutty65
    @ammukutty65 4 роки тому +1

    Super sir🤩

  • @srimathi9683
    @srimathi9683 3 роки тому +1

    Clear cut explanation sir

  • @durgadrg4185
    @durgadrg4185 4 роки тому +1

    Yen ethula cscl gradient density choose panna nga why can't sucrose,percoll

  • @christiarubi3542
    @christiarubi3542 Рік тому +1

    Mass

  • @lissyram4203
    @lissyram4203 4 роки тому +1

    Bro next topic yappo poduveenga ( transcription )

    • @MAGESHBIOLOGY
      @MAGESHBIOLOGY  4 роки тому

      Sorry for delay bro i Will upload this weekend two video

  • @dhanushganesh1468
    @dhanushganesh1468 4 роки тому +1

    Template meaning solluga anna

  • @jayabharathiarumugam5738
    @jayabharathiarumugam5738 3 роки тому +1

    Sir what is difference between replication and duplication

    • @MAGESHBIOLOGY
      @MAGESHBIOLOGY  3 роки тому +2

      Replication refers to the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules while duplication refers to the process by which the amount of DNA inside the nucleus gets doubled.

  • @CSELatha
    @CSELatha 4 роки тому +6

    1 view and 1 comment anna

  • @sathishseeralan4015
    @sathishseeralan4015 4 роки тому +2

    anna i need chromosomal basis of inheritance and evolution because that lessons are remain to finish the biology all topics for me so please try to upload that lesson as well as soon

  • @Monicapd
    @Monicapd 4 роки тому +3

    Third comment... 😊sir

  • @nafeesmuhammad7464
    @nafeesmuhammad7464 4 роки тому +1

    sir video potuta irunga na one by one na pathutu varan neenga nadathum bothau theliva purithu neenga video poda poda subcriber athikamavanga na 50k subcriber varathuku wish pannuran

    • @nafeesmuhammad7464
      @nafeesmuhammad7464 4 роки тому +1

      engalukaga time spend panni nalla theliva solli tharainga neenga tha enga
      guru

    • @MAGESHBIOLOGY
      @MAGESHBIOLOGY  4 роки тому

      Thank you.. Ji.. I will try to upload more video, little delay because of online class and other works at school.

    • @MAGESHBIOLOGY
      @MAGESHBIOLOGY  4 роки тому +1

      Theivamea thank you.

    • @MAGESHBIOLOGY
      @MAGESHBIOLOGY  4 роки тому

      After Neet exam got over, subscribers and views koranji pochi ji 😔

    • @nafeesmuhammad7464
      @nafeesmuhammad7464 4 роки тому +2

      @@MAGESHBIOLOGY nanga irukom

  • @josephayyadurai47
    @josephayyadurai47 4 роки тому

    Sir. Human health start pannuga plz plz sir

  • @priyadharsinipriya5718
    @priyadharsinipriya5718 25 днів тому +1

    😢