EPIGENETICS and GENE EXPRESSION A-level Biology. How methyl and acetyl groups control transcription

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  • เผยแพร่เมื่อ 21 ธ.ค. 2024

ความคิดเห็น • 45

  • @leahlester2620
    @leahlester2620 4 ปีที่แล้ว +28

    Thank you!! You make this topic seem so simple now☺️

    • @MissEstruchBiology
      @MissEstruchBiology  4 ปีที่แล้ว +2

      Thank you Leah :)
      Glad you have found your 'subscriber choice' video helpful😁

  • @AndrewIu-jq3rt
    @AndrewIu-jq3rt 6 หลายเดือนก่อน +19

    Revision for next week yay

  • @menerrs
    @menerrs 3 ปีที่แล้ว +15

    thank you so much, when i learnt this in school I was overwhelmed by the new vocab but you explained it perfectly!

    • @MissEstruchBiology
      @MissEstruchBiology  3 ปีที่แล้ว +1

      Hello 👋🏻
      That's great 😁 So pleased it helped you understand this topic and the key words

  • @qaisarsbiology5267
    @qaisarsbiology5267 4 ปีที่แล้ว +12

    I was searching for a simple explanation on epigenetics and finally, i got it here.Thank you again

  • @ethancheung114
    @ethancheung114 9 หลายเดือนก่อน +13

    such a hard topic ngl

  • @kingd1738
    @kingd1738 2 ปีที่แล้ว +29

    Oh my lawd im finished tomorrow

    • @imamalilover968
      @imamalilover968 ปีที่แล้ว +1

      😂😂😂😂 how did it go

    • @Lil_rousey
      @Lil_rousey 9 หลายเดือนก่อน +1

      😂😂😂😂😂

    • @shazmeertv44
      @shazmeertv44 9 หลายเดือนก่อน +1

      Cry about it mate

    • @jeddy2925
      @jeddy2925 8 หลายเดือนก่อน +3

      Jesus is Lord btw 😁

  • @tryingtolearnn
    @tryingtolearnn 11 หลายเดือนก่อน +2

    3:57 is there a mistake because it says transcription is going to be hard as there are stronger association of dan and histone but then you say the exact opposite?

  • @itsarmie3162
    @itsarmie3162 3 ปีที่แล้ว +3

    i return again to thank you, bless you! :)

    • @MissEstruchBiology
      @MissEstruchBiology  3 ปีที่แล้ว +1

      You are very welcome! I hope the videos continue to help you.

  • @angelumeokaleo1859
    @angelumeokaleo1859 2 ปีที่แล้ว +3

    hi I was wondering , if there’s decreased acetylation of histones does that make then bind to DNA Mir tightly or do they bind loosely ?? :)

    • @tania-vq8di
      @tania-vq8di 2 ปีที่แล้ว +1

      i think they bind more tightly due to stronger association!

    • @gregorysmith1134
      @gregorysmith1134 2 ปีที่แล้ว

      More tightly. The less acetylation, the more methylation.

  • @marckessler3662
    @marckessler3662 3 ปีที่แล้ว +3

    Excellent videos, I am going to show this one to my AP Biology students. Given the quality of your videos, you should have many more views :)

    • @MissEstruchBiology
      @MissEstruchBiology  3 ปีที่แล้ว +1

      Thank you so much. I hope it helps them.
      Hopefully one day I will 😊🤞

    • @gregorysmith1134
      @gregorysmith1134 2 ปีที่แล้ว

      Most people know nothing about molecular biology. This is not a video for the general public, but, rather, for that small percentage of the population who has the background knowledge to understand the subject matter.

    • @rubiksworld2170
      @rubiksworld2170 9 หลายเดือนก่อน +2

      @@gregorysmith1134lol this is just an a level biology video so for 16-18 year olds. And a lot of ppl do a level bio!

  • @mostafaelboghdady8653
    @mostafaelboghdady8653 2 ปีที่แล้ว +1

    thank you doctor for this helpful video ☺☺☺

  • @VanecheWansi
    @VanecheWansi 8 หลายเดือนก่อน

    This was really helpful

  • @missgirl7879
    @missgirl7879 10 หลายเดือนก่อน

    Im finished for my mocks 😢

  • @sea5205
    @sea5205 3 ปีที่แล้ว

    You have really helpful videos thanks!

  • @mathur932
    @mathur932 2 ปีที่แล้ว +1

    thank you

  • @rmzfbrmz
    @rmzfbrmz ปีที่แล้ว +3

    Summary:
    Adding a methyl group to the tail (methylation) maintains the positive charge, making DNA more coiled and reducing transcription. Methyl group isn't positive.
    Adding an acetyl group to the tail (acetylation) neutralises the charge, making DNA less tightly coiled and increasing transcription.

  • @gregorysmith1134
    @gregorysmith1134 2 ปีที่แล้ว +2

    Like your British accent. You pronounce certain words differently than we do in America.

    • @MissEstruchBiology
      @MissEstruchBiology  2 ปีที่แล้ว

      ahh yeah! Which words? I know in ecology niche is pronounced differently

    • @gregorysmith1134
      @gregorysmith1134 2 ปีที่แล้ว

      @@MissEstruchBiology words such as Methyl. We give it an "eh" sound, whereas you place your accent on the "e". It is difficult to explain in writing. While I have your ear, if I wanted to convert a virus into a retrovirus, would I need to create an operon to code for my Integrase, Protease, and Reverse Transcriptase? It would seem I would need to insert an operator to allow repression until these enzymes are translated and ready to carry out their functions.

    • @winniethepooh8766
      @winniethepooh8766 ปีที่แล้ว

      @@gregorysmith1134 smart guy

  • @jonathanhyde3593
    @jonathanhyde3593 6 หลายเดือนก่อน +2

    i’m praying this doesn’t come up tmr

  • @Diedieimmerlacht253
    @Diedieimmerlacht253 3 ปีที่แล้ว +1

    The acetyl group is not negative. It just masks the positive charge of histones. Anyway, your videos are awesome.

    • @MissEstruchBiology
      @MissEstruchBiology  3 ปีที่แล้ว +4

      Glad you liked the video. Thanks for your point. For AQA that is the accepted the level of detail. As is often that case with science, GCSE and A-levels are taught at a particular level rather than all the exact details to prevent the courses becoming waaayyy to detailed and too high a standard.

    • @atrappy2077
      @atrappy2077 2 ปีที่แล้ว +8

      if you're such an expert then why u watching bio videos

  • @sujansvault
    @sujansvault 2 ปีที่แล้ว

    m lmk

  • @Simi.g
    @Simi.g ปีที่แล้ว

    thank you