Inheritance: Autosomal Linkage | A Level Biology Revision

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  • Опубліковано 24 гру 2024

КОМЕНТАРІ • 56

  • @soupfactory3815
    @soupfactory3815 6 років тому +104

    BROTHER I WAS SO PUMPED WATCHING THIS VID I HAD SEVERAL EUPHORIC MOMENTS THAT I MUST DECLARE... AT FIRST I WAS LIKE WOA NAH BRUH I DON'T GET ANY OF THIS BUT THEN I WAS LIKE WOA YAH I GET THIS AND I'M SO GRATEFUL THAT YOU PUT THE TIME AND EFFOT INTO MAKING THIS BECAUSE REST ASSURED YOU HAVE HELPED AT LEAST ONE PERSON IN THIS WORLD. I'M BUZZIN FAM.

  • @quisha4008
    @quisha4008 6 років тому +55

    someone please give this MAN A GOLD TROPHY these are such a great aid for biology!

    • @atrappy2077
      @atrappy2077 2 роки тому +1

      he dont want a gold trophy but he will gladly take ur money instead lol

  • @areebhaidery479
    @areebhaidery479 7 років тому +25

    These videos are the biggest a level biology help ever its like an individual lesson on each topic

  • @RagingHotQueenMachine
    @RagingHotQueenMachine 3 роки тому

    Hands down the best Biology tutorials on youtube! Good work folks!

  • @rebecad1163
    @rebecad1163 4 роки тому +1

    I needed to know this for a college assignment, but because we are currently not having lessons because of the pandemic I had to learn it by myself. And i am so glad this video exists because I was so lost.

  • @lukeduffy5208
    @lukeduffy5208 5 років тому +39

    Who else is here the morning of their exam 🤦🏽‍♂️😂

  • @ishaparekh9035
    @ishaparekh9035 7 років тому +14

    Thanks so much! My course textbook was very vague around this topic, but your video cleared it all up for me. Very useful

  • @lilbromine1598
    @lilbromine1598 4 роки тому +2

    This is explained so well. Cheers g.

  • @Jimmyeatshrimp
    @Jimmyeatshrimp 2 роки тому

    great way of explaining thanks ur saving my grade

  • @cherishmukasa1445
    @cherishmukasa1445 6 років тому +11

    Your awesome God bless you, I am being dead serious you couldn’t be any clearer I wish you were my teacher😭😭😭

  • @dersatic9994
    @dersatic9994 7 років тому +23

    Great video, i will definitely be watching a lot of your videos on my week topics. Shame I found course late, cant justify spending the money at this point :P

    • @jianyinhe1146
      @jianyinhe1146 6 років тому

      Freddie Farrell Hello sir found it so helpful thanks a lot!!! But I still don’t get why the ratio is 3:1, because even though the genes are linked, I still get all heterozygous dominant for example , 2Tr and 2tR, which is after independent assortment!

  • @CuppaT2000
    @CuppaT2000 6 років тому +4

    Thank you so much you legit just helped me pass a test! :)

  • @thomashall8308
    @thomashall8308 4 роки тому +2

    incredible

  • @mohamadsheikhnoor5337
    @mohamadsheikhnoor5337 3 роки тому

    finally get autosomal linkage thanks

  • @Yhh272
    @Yhh272 4 роки тому +1

    Great video...thank you!!

  • @RishikaSinghthetraveler
    @RishikaSinghthetraveler 3 роки тому

    Wow I finally understand , thanks so much

  • @somid7777
    @somid7777 3 роки тому

    In 11:55, if the chromosomes are closer on loci and hence have a closerlink, how does that affect how they are crossed?? I rly didnt understand that

  • @Xenodef
    @Xenodef 5 років тому

    The textbook explanation of autosomal linkage kept confusing me, thank you for making it clearer, I get it now!

  • @tractortee9915
    @tractortee9915 5 років тому +4

    OMG I GET IT NOW!!!!

  • @joannadaniel9396
    @joannadaniel9396 Рік тому

    thank you you're amazing

  • @eddlake5694
    @eddlake5694 5 років тому +1

    Thanks this is a good explanation

  • @dylantucker3432
    @dylantucker3432 6 років тому

    Could someone explain the point made at 11:20 about the numbers and how they are a result of crossing over please (would we expect a phenotypic ratio of 4:3:3:1?). Thanks

  • @dawnkleinveldt5386
    @dawnkleinveldt5386 4 роки тому

    Excellent. Thanks xoxo

  • @jianyinhe1146
    @jianyinhe1146 6 років тому +1

    Hello SIR found it so useful thanks a lot!!! But I still don’t get the idea that i]the ratio will be 3:1 after independent assortment because I will get all heterozygous and the genotype is 2Tr:2tR. Could you please say something more about this?

  • @saracullen1142
    @saracullen1142 6 років тому

    really helpful and very much appreciated!!

  • @user-mp2qg1zn8p
    @user-mp2qg1zn8p 6 років тому

    Quick question: the ratio of the phenotypes after the crossing over is 50% same as parent and 50% new. How does most of the offspring then have their parents genotype?

  • @slimeking1096
    @slimeking1096 6 років тому

    it was perfect thank you . understood perfectly.

  • @ghsjgsjg53chjdkhjydhdkhfmh74
    @ghsjgsjg53chjdkhjydhdkhfmh74 5 років тому +1

    How is it that the closer the loci of genes of an autosome the more closely linked they are?
    I don't understand the crossing over diagram you drew with Q and q😭
    Pls pls reply😭😭💓

    • @ghsjgsjg53chjdkhjydhdkhfmh74
      @ghsjgsjg53chjdkhjydhdkhfmh74 5 років тому

      Oh wait the rqs stayed the same after crossing over but tqs changed 50% after crossing over!! Is that it??*_*

  • @jacknewton2518
    @jacknewton2518 6 років тому

    Awesome video, thanks for the help! :)

  • @arianamugore5029
    @arianamugore5029 6 років тому

    amazing you're lifesavers

  • @khadijah3343
    @khadijah3343 5 років тому

    So helpful! :)

  • @freddiemcminn2003
    @freddiemcminn2003 6 років тому

    how do you know which allele is on which homologous chromosome when the question tells you the genotype of the parents to be crossed it doesn't specify...?

    • @freddiemcminn2003
      @freddiemcminn2003 6 років тому

      isn't the parents genotype like TtRr??

    • @freddiemcminn2003
      @freddiemcminn2003 6 років тому

      if the question states that the parents are heterozygous for both genes

    • @DJ-tr6nf
      @DJ-tr6nf 4 роки тому

      They should show you a picture on the autosomes

  • @kate___lynch
    @kate___lynch Рік тому

    Legend

  • @priyankapandya7868
    @priyankapandya7868 5 років тому

    why will the majority of offspring have the same phenotype and genotype as their parents?

  • @delaliavevor7858
    @delaliavevor7858 7 років тому

    This video was so helpful. Thank you so much.

  • @alevelsdemystified3410
    @alevelsdemystified3410 7 років тому

    Your videos are great for revision.Keep up the good work,sir!

  • @h9.k
    @h9.k 6 років тому

    thank u

  • @alexhz
    @alexhz 5 років тому +1

    If it is autosomal linkage, how come you are describing meiosis because autosomes replicate by mitosis.

    • @tailoredtutors
      @tailoredtutors  5 років тому

      Hey! Thanks for your comment-Rich answers all of these questions over in The Academy! To access the full package, you can sign up here: tailoredtutors.co.uk/free-trial/

  • @whysoserious7993
    @whysoserious7993 7 років тому

    But if crossing over always gonna occur that way around why we dont get ratio like 497:490:496:506 for example. I mean crossing over always swaps r allele and R allele everytime assuming crossing over always occur the same.Im confused about this hope u can clear
    Great video Thank You.

    • @whysoserious7993
      @whysoserious7993 7 років тому

      One more question, If we talkin just about Q/r and R/r (the close ones) what would be expected ratio?

  • @jayzeeeasy4734
    @jayzeeeasy4734 5 років тому

    Loki