Genetic Drift

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  • Опубликовано: 8 июл 2024
  • Discover what happens when random events meet allele frequencies: genetic drift! This Amoeba Sisters video also discusses the bottleneck and founder effect as well as contrasts genetic drift with natural selection.
    Table of Contents:
    00:00 Intro
    1:33 Defining Genetic Drift
    1:43 Comparing Genetic Drift to Natural Selection
    2:05 Bottleneck Effect
    2:52 Founder Effect
    3:34 Genetic Drift is a Mechanism for Evolution
    3:39 Population Sizes and Genetic Drift
    The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. For more information about The Amoeba Sisters, visit:
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    We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: openstax.org/details/books/bi...
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    TRANSLATIONS:
    Thank you so much to our translators!
    Português - Érika Hotz A. Stein
    Hindi Subtitles: Alisha Aggarwal
    While we don't allow dubbing of our videos, we do gladly accept subtitle translations from our community. Some translated subtitles on our videos were translated by the community using RUclips's community-contributed subtitle feature. After the feature was discontinued by RUclips, we have another option for submitting translated subtitles here: www.amoebasisters.com/pinkys-... We want to thank our amazing community for the generosity of their time in continuing to create translated subtitles. If you have a concern about community contributed contributions, please contact us.

Комментарии • 489

  • @AmoebaSisters
    @AmoebaSisters  5 лет назад +96

    This video is part of our Unlectured Series www.amoebasisters.com/unlectured How is this evolutionary mechanism different from Natural Selection? We have a Short here! ruclips.net/video/4K_BDOLtJ9I/видео.htmlfeature=shared .

    • @rohitisukapalli4499
      @rohitisukapalli4499 5 лет назад +1

      do you guys do only genetics

    • @HeLlo-bj8sd
      @HeLlo-bj8sd 5 лет назад +5

      You liked your own comment😂

    • @subzerogH21
      @subzerogH21 4 года назад

      oh boy natural selection

    • @chambaykadc4827
      @chambaykadc4827 2 года назад

      Pretty good explanation with simple and humble animation 😍

    • @iVoltrex
      @iVoltrex 2 года назад

      @@rohitisukapalli4499 No they don't

  • @pangvang7572
    @pangvang7572 4 года назад +1522

    so you're telling me...it could really be this easy, but my professors just choose to make it hard?

  • @jaimank5458
    @jaimank5458 7 лет назад +739

    Today was my last day of school, yet I still find myself watching these videos.

    • @AmoebaSisters
      @AmoebaSisters  7 лет назад +176

      Probably one of the best compliments we could ask for! Thanks for watching, and we hope you're enjoying your summer! ^__^

    • @str4wberrysquid115
      @str4wberrysquid115 7 лет назад +8

      Jaiman K OMG SAME

    • @colepetrovich604
      @colepetrovich604 6 лет назад +12

      These videos help me so much in class because my teacher sounds dumb

    • @lxrensx1449
      @lxrensx1449 5 лет назад +11

      Ur a nerd

    • @itty2270
      @itty2270 5 лет назад +2

      Summer coming in just a few weeks, less than a month, and we're not even studying anything like this in biology, yet here we are. These videos are awesome

  • @a.b.8366
    @a.b.8366 6 лет назад +385

    You are just great, I go to University and tomorrow is my genetics exam. Since my brain is oversaturated and coffee doesn't help anymore, I just started watching your videos in order to relax. and I even think, they might help a little tomorrow.

  • @spencerholmes7604
    @spencerholmes7604 5 лет назад +138

    Side note, at 3:38, when the question is asked which population size could be more affected by genetic drift, this is a wonderful analogy to how grades fluctuate more wildly early in the semester with few assignments (i.e., "small population"), but later in the semester, when there are far more assignments entered, the grade is much more stable, less likely to be impacted by any one assignment (i.e., "large population"). It helps reduce the number of students rushing to me at the end of the semester asking for some epic grade improvement. :-)

    • @jxstalex_roblox8405
      @jxstalex_roblox8405 Год назад +3

      This helped me understand it thanks lol

    • @MastaE2288
      @MastaE2288 Год назад

      I legit thought the answer would be the same thinking from a percentage perspective

    • @nahlahumaina2275
      @nahlahumaina2275 9 месяцев назад

      waah, i got it

  • @alineteranlazaro4069
    @alineteranlazaro4069 7 лет назад +391

    The "Notice me, Senpai" at the end omg ha. That's great

    • @parkerasel8129
      @parkerasel8129 5 лет назад +8

      Aline Teran Lazaro yes they put naruto and dragon ball references too lol

    • @elizabethdillard3998
      @elizabethdillard3998 4 года назад +4

      ITS LIKE THE GUMMY BEAR WANTS PINKY TO NOTICE IT. OR THE OTHER WAY AROND

    • @Gerald7894
      @Gerald7894 2 месяца назад

      Reminding you of this comment you made 6 years later

  • @daniellavelasquez5886
    @daniellavelasquez5886 4 года назад +133

    For Halloween my biology teacher and another science teacher dressed up as the Amoeba Sisters.

  • @Jabrils
    @Jabrils 7 лет назад +155

    THIS VIDEO WAS FANTASTIC! THANK YOU!

    • @ahmad138
      @ahmad138 2 года назад +3

      When you commented on this video you didn't have a youtube channel and now 450k+ 😃

  • @RainbowCloudofPocky
    @RainbowCloudofPocky 4 года назад +34

    We need more channels like these! Many times us college students get oversaturated with all the material, so having these to rewind and reinforce is really helpful.

  • @emmabila3480
    @emmabila3480 6 лет назад +151

    best channel for science espically AP biology

    • @jaycema1012
      @jaycema1012 5 лет назад +1

      NOBEL DJ you learn this in ap biology? I’m in middle school. Well I just graduated. Does that mean I’m prepared for highschool?

    • @LucaS-nq2sn
      @LucaS-nq2sn 5 лет назад +2

      @@jaycema1012 in some ways it will be much easier than you think. but in many other ways it will be absolutely awful and nothing but patience and focus can prepare you

    • @happyguy6021
      @happyguy6021 4 года назад

      thats why i chose that over ap chem

    • @TheBigTripper420
      @TheBigTripper420 4 года назад

      sci show is way better

    • @OmniversalInsect
      @OmniversalInsect 27 дней назад

      We learn this in A level.

  • @sreedharshankar8092
    @sreedharshankar8092 4 года назад +55

    Hey amoeba sis, do u even know?, That Ur videos helps me in getting concepts- simplified and easily memorable , for my medical college entrance exam (NEET) in India, yeah I agree that there is a lot more than the information in ur videos
    But the core concepts becomes crystal clear like in this video, thanks a lot, and we remind u to stay awesome😜

  • @PooCrizzap
    @PooCrizzap 6 лет назад +87

    This style is so unique to other science videos. I love it, it was so easy to learn. Thank you!!

  • @forgemakesstuff2734
    @forgemakesstuff2734 4 года назад +12

    Y’all are magic. I learn a concept in science, it makes no sense, I watch an Amoeba Sisters video, and I suddenly understand it

  • @paulkopp4733
    @paulkopp4733 7 лет назад +6

    I am pushing 60 and find myself teaching high school biology at summer school. last time I took a bio class in the mid 70s...these videos are great! thank you.....

  • @AparajitaSandhu
    @AparajitaSandhu 4 года назад +2

    @3.16 "I am groot?" *cute puppy face with big eyes, tilting head adorably to one side*

    • @Die4zeke
      @Die4zeke 3 года назад

      Puppies faces are adorable

  • @Ltkill11
    @Ltkill11 7 лет назад +17

    Finished Biology finally and thankfully I passed and passed my final ! (Surprisingly)
    I thank you Amoeba Sisters for helping me through that journey. With out you all I may not have passed and may be in summer school lol.
    Thankfully I am not, but without these videos I do not know where I would be.
    A huge thanks ❤️

  • @circlerie
    @circlerie 6 лет назад +26

    you did a good job of explaining genetic drift in 4.5 minutes than all my biology teachers ever did in my whole life

  • @LittleWaffle
    @LittleWaffle 7 лет назад +27

    Hey :) thanks a lot for providing us with these great videos ! I'm a college student from Belgium, and I still find them very helpful, plus they're a pleasure to watch ! Keep up the good work, you're making a difference for all us who sometimes struggle with biology :)

  • @stickykeys5945
    @stickykeys5945 7 лет назад +54

    Yay! I got the notification right away! Good job amoeba sisters!

  • @pritchard741
    @pritchard741 5 лет назад

    This was the best. Get it now after reading the definitions online 100s of times. :)

  • @rongong8401
    @rongong8401 4 года назад

    Having biology paper tomorrow. Glad I found this video. Love your voice!

  • @subzerogH21
    @subzerogH21 4 года назад +20

    1:04 "This just coming in, a group of young children start up the violent Scooter Squad, murdering thousands of insects under the wheels. With more on that our field reporter, Bryson Potts. "
    "Hi yes, this is Bryson Potts. Today I'm nearby a recent crime scene, scooter tracks and dead insects covering the scene. Back to you in the studio Phil."
    "Ok, coming up next, the new music ideo for Go Stupid is out now."

  • @binayakprasadbehera8040
    @binayakprasadbehera8040 3 года назад

    M a master's student ... And m very astronished to know u are doing a great job ... Thankyou 😍😍😍❤️❤️❤️

  • @vidurkumar7206
    @vidurkumar7206 5 лет назад +1

    Thank you for explaining in very easy way... keep uploading new videos...

  • @madhouse2594
    @madhouse2594 5 лет назад +6

    Finally a science video that doesn't bore the heck out of me! Thank you!!!😊

  • @elizabethdillard3998
    @elizabethdillard3998 4 года назад +8

    I LOVE HOW HAPPY PINKY IS ABOUT EVERYTHING,AND HOW CUTE PUTUNYA IS

  • @somiii_9948
    @somiii_9948 4 года назад

    Thank god the world has Amoeba sisters!!

  • @tylerbembridge778
    @tylerbembridge778 7 лет назад

    i got shown your youtube channel st school and been watching videos since to revise for my ppe exams (mocks) and these videos have helped me understand and get me more interested in science thanks u

  • @tamiyadavis6369
    @tamiyadavis6369 6 месяцев назад +1

    I wished they showed these videos after lecture in college it would literally tie everything together for the visual learners😩😩

  • @chc2405
    @chc2405 6 лет назад

    These videos are AMAZING

  • @lesliecazeaux2818
    @lesliecazeaux2818 6 лет назад +8

    High school teacher here. Love this for my introductory Biology class! Great job on the graphics ladies :)

  • @dreambig874
    @dreambig874 2 года назад

    you are the coolest teacher in youtube... you make studing full of fun and this makes easier to remember later..i love youuuu.. btw the last notice me senpai is the best part of the vid

  • @beware7437
    @beware7437 6 лет назад

    Ameoba sisters ....
    I love this channel .....
    And u too .. what a great concept ... and idea of teaching and learning process .......

  • @raghav_singh_
    @raghav_singh_ 6 лет назад +1

    Thx so much for such an amazing video

  • @alevelsdemystified3410
    @alevelsdemystified3410 6 лет назад

    Informative,Comprehensive and Interesting.

  • @1695loveena
    @1695loveena 3 года назад +6

    You guys make the concepts sooooo easy to understand..kudos to you guys.. keep it up!!

  • @sumayafelic1518
    @sumayafelic1518 4 года назад

    I have already done my Biology mock but Im watching this. I am officially a geek :)

  • @Jeleky
    @Jeleky 3 года назад

    woah its Halloween today. What a day to watch this.

  • @sinandurukan6817
    @sinandurukan6817 8 месяцев назад

    you guys have helped me so much with my exams. Amoeba sisters 4 life🙏🙏

  • @michaelpentland1581
    @michaelpentland1581 3 года назад +1

    You guys make it look and sound so effortless. Great job as always.

  • @emipuff2003
    @emipuff2003 7 лет назад +33

    Amoeba sisters cool video!
    I'm a seventh grader and when my science teacher showed one of your
    videos to our class today, i fell in love with this channel immediately!
    I am now a fan and I subscribed! :)

    • @AmoebaSisters
      @AmoebaSisters  7 лет назад +9

      Thank you so much! We're so glad you found us! ^___^

    • @emipuff2003
      @emipuff2003 7 лет назад +2

      Amoeba Sisters no problem! :)

    • @alexwang982
      @alexwang982 7 лет назад

      Max888 I found your channel accidentally

  • @v5red
    @v5red 5 лет назад +1

    Great video. I used to teach an evolutionary biology lab course, and had this video existed back then, I would have probably recommended it for some of my students who struggled with drift.

  • @user-dk7jr4nw9t
    @user-dk7jr4nw9t 5 лет назад

    Watching this before my biology practice exam tomorrow!!

  • @murmusarbe
    @murmusarbe 6 лет назад

    U r supertalented....!!👍👍👍 thank you...

  • @KimAnh
    @KimAnh 6 лет назад +4

    Im a senior in high school taking AP Biology and these cute videos help me sooo much!! thank you !

  • @forgedwithsteel
    @forgedwithsteel 4 года назад

    this channel is a gift from god

  • @supersongs521
    @supersongs521 5 лет назад +1

    Great job guys..🤗

  • @danielm8855
    @danielm8855 4 года назад +1

    You guys are actually really helpful with science, thankyou!

  • @soffitoffi9573
    @soffitoffi9573 5 лет назад +2

    Очень крутые иллюстрации! большая благодарность авторам, очень помогаете 😍

  • @rimtaifi9476
    @rimtaifi9476 2 года назад

    awesome explanation

  • @dylanbarker5911
    @dylanbarker5911 2 года назад

    The one day before study-Amoeba Sisters about to come in clutch

  • @abindinesh8223
    @abindinesh8223 5 лет назад

    You made it awesome ,.......Thanks...

  • @sukhmansidhu4453
    @sukhmansidhu4453 2 года назад +3

    This is so helpful, I'm using these videos to review for the AP Bio exam coming up. Even though the content is not as thorough as the stuff I need to know for AP Bio, it's such a good review to help jog my memory again from the jam-packed AP content. 10/10 recommended for AP Bio kids (and everyone).

    • @greybook6616
      @greybook6616 2 года назад

      mines too i’m so scared lol

  • @abhilashasharmasuman6800
    @abhilashasharmasuman6800 2 года назад

    Amazing explanation

  • @arelideleon1155
    @arelideleon1155 6 лет назад

    My bio test is tomorrow and I am non-stop watching your video, I did a list that I have to know and you have all the videos, you’re such a life saver!!

  • @rashikachouhan3259
    @rashikachouhan3259 4 года назад +1

    Please make video on what is Gene Pool and why it is important to preserve it.. please please please....

  • @alinasadaf751
    @alinasadaf751 5 месяцев назад +1

    Like Seriously You made it sooo easyyyy 🙌🏻❤️

  • @lemidar664
    @lemidar664 3 года назад

    This is why i choose this channel to learn science

  • @altamir403
    @altamir403 7 лет назад +2

    So cool!

  • @ClarissaRose
    @ClarissaRose 5 лет назад

    Thank you guys soooooo much for making these videos!! They're SO HELPFUL

  • @bayleer7116
    @bayleer7116 4 года назад +5

    I'm an adult who just wanted a refresher studying for the MCAT, but this was so easy to understand and yet entertaining enough to follow for all ages!

    • @sandrasorto8375
      @sandrasorto8375 5 месяцев назад

      How did it go with the MCAT?

    • @bayleer7116
      @bayleer7116 5 месяцев назад

      Haha, 506 first try and am currently in a US medical school! @@sandrasorto8375

  • @cameronniven5455
    @cameronniven5455 4 года назад

    I always love watching these videos because they are so informative. I always find myself watching these everyday!

  • @MiaStaAna-ey2be
    @MiaStaAna-ey2be 3 года назад +2

    This is helpful, thank you so much for thisT^T it makes it easier for me to understand. I have a formative exam next week on Tuesday, I can't wait to smash this out💜

  • @carlosmendes7
    @carlosmendes7 4 года назад

    This channel is just amazing! **-**

  • @natsharpe4364
    @natsharpe4364 5 месяцев назад

    Great video thanks 💛

  • @FakeAssHandsomeMcGee_
    @FakeAssHandsomeMcGee_ 4 года назад +4

    Very charismatic right from the get-go. Subscribed

  • @rajigirija1967
    @rajigirija1967 2 года назад

    Thank you very much.....

  • @vanshitathakur2906
    @vanshitathakur2906 6 лет назад +1

    U have made studying science simpler and it feels very good to watch ur videos

  • @coucmark
    @coucmark 6 лет назад

    Fantastic!

  • @am_a11akxmadova59
    @am_a11akxmadova59 3 года назад +1

    I admire this channel :)

  • @reginakumimensah8982
    @reginakumimensah8982 4 года назад

    👏👏👏👏. Just got a better understanding it.

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    @017kamakshisharma7 6 лет назад

    great job ...I appreciate

  • @Jdk27grbd
    @Jdk27grbd Год назад

    THANK YOU SO MUCH

  • @bencarter8324
    @bencarter8324 Год назад

    Nice vid. Thank you.

  • @nahlahumaina2275
    @nahlahumaina2275 9 месяцев назад

    waah thanks a lot for u guys have made this video... good job as always

  • @nekolancsu
    @nekolancsu 4 года назад +1

    wow i was doing some bio hw and i stumbled along your channel AND I LOVE IT :DDDD

    • @nekolancsu
      @nekolancsu 4 года назад +1

      im gonna use your channel to study for my biology EOC ;)

  • @sahithivemu6505
    @sahithivemu6505 3 года назад

    Superb explanation 👌

  • @schwooop3036
    @schwooop3036 6 лет назад

    I always come back to these videos for help in understanding bio topics. Thank you so so much for these 🌟

  • @andymedrano1802
    @andymedrano1802 Год назад

    always helpful

  • @Libbyness
    @Libbyness 4 года назад

    Great videos

  • @YerSiNia14
    @YerSiNia14 3 года назад

    wew this is very easy to understand thanks yo

  • @pie4
    @pie4 7 лет назад +5

    I watched these all school year to study, and it helped so much that I now find myself watching in preparation for next year. thank you

  • @mrsgiraffey
    @mrsgiraffey 7 лет назад +2

    Loved this :')

  • @alexwang982
    @alexwang982 7 лет назад

    I finished school and I still watch this

  • @winni12345
    @winni12345 7 лет назад +1

    so awesome can you make video on blood circulation pls

  • @joshuaestrada6042
    @joshuaestrada6042 7 лет назад

    yes please post more science in the summer rules

  • @tink._.creations7300
    @tink._.creations7300 5 лет назад +4

    When your Biology teacher can’t teach but you need to pass the Bio exam....
    *Watches every biology episode of the Amoeba Sisters*

  • @camillemcwhorter3504
    @camillemcwhorter3504 4 года назад +1

    These videos are the best thing that ever happened to my bio grade.

  • @mx7118
    @mx7118 2 года назад

    ohh my duck. This is soooo good. thank you so much :D

  • @beanyplaysMC
    @beanyplaysMC 6 лет назад

    great vid thank you

  • @malaikabaig4929
    @malaikabaig4929 4 года назад

    TYSM! Test tomorrow!!! Ekkkk

  • @GaneshKishoreG
    @GaneshKishoreG 2 года назад +1

    Soo easyyyyy to understand

  • @mooomuuuo
    @mooomuuuo 5 лет назад

    Thank you!

  • @hihams6993
    @hihams6993 5 лет назад

    Thank you so much for this, I could not understand genetic drift for the life of me and this explained it perfectly.

  • @dishitasoniagupta2862
    @dishitasoniagupta2862 4 года назад

    U r really ossm .........u teach in interesting manner srsly 💖💖💖💖💖💖💖💖💖💖💖

  • @arjanaalmaneih7731
    @arjanaalmaneih7731 3 года назад

    These videos are awesome they help a lot with my college level BIOL class plus it makes the curriculum really fun!!

  • @monicanatasha6318
    @monicanatasha6318 6 лет назад

    This is the cutest way to learn ecology.

  •  2 года назад

    Loved it, simple and straightforward. The examples were perfect. Thanks :)

  • @ddharsh2548
    @ddharsh2548 4 года назад +1

    Thank you guys soo much! This is soo simple! I don't know why I was struggling with this. I'm going to draw the amoeba sisters and frame it in my bedroom.

  • @luzelenaabarca1535
    @luzelenaabarca1535 3 года назад +1

    bless your hearts. You have made every topic easy for me to understand that at this point LOOOVe and am fascinated
    !