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:
http://www.amoebasisters.com/about-us.html
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: https://openstax.org/details/books/biology
Support Us? https://www.amoebasisters.com/support-us
Our Resources:
Biology Playlist: https://www.youtube.com/playlist?list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz
GIFs: https://www.amoebasisters.com/gifs.html
Handouts: https://www.amoebasisters.com/handouts.html
Comics: https://www.amoebasisters.com/parameciumparlorcomics
Unlectured Series: https://www.amoebasisters.com/unlectured
Connect with us!
Website: http://www.AmoebaSisters.com
Twitter: http://www.twitter.com/AmoebaSisters
Facebook: http://www.facebook.com/AmoebaSisters
Tumblr: http://www.amoebasisters.tumblr.com
Pinterest: http://www.pinterest.com/AmoebaSisters
Instagram: https://www.instagram.com/amoebasistersofficial/
Visit our Redbubble store at https://www.amoebasisters.com/store
TIPS FOR VIEWING EDU YOUTUBE VIDEOS:
Want to learn tips for viewing edu YouTube videos including changing the speed, language, viewing the transcript, etc? https://www.amoebasisters.com/pinkys-ed-tech-favorites/10-youtube-tips-from-an-edu-youtuber-duo
MUSIC:
Music in this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog
COMMUNITY:
We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube’s community guidelines and how YouTube handles comments that are reported by the community. We also reserve the right to remove comments.
TRANSLATIONS:
Thank you so much to our translators!
Português – Érika Hotz A. Stein
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 YouTube’s community-contributed subtitle feature. After the feature was discontinued by YouTube, we have another option for submitting translated subtitles here: https://www.amoebasisters.com/pinkys-ed-tech-favorites/community-contributed-subtitles 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.
source
This mechanism of evolution can be compared to natural selection (https://youtu.be/7VM9YxmULuo). In addition, this video is part of our Unlectured Series https://www.amoebasisters.com/unlectured
But some random events happen again. Wouldn't the survivors be better adapted next time? If an Asteroid kills all cold blooded animals but spares the mammals then are the mammals not better adapted for the next Asteroid?
Cute drawings really
Is it really chance though? Take your sidewalk example. The set of properties as determined by natural selection led some ants to walk on the middle of the sidewalk in the path of scooters and so some of them die. How is this pure random exactly? It seems that you can also call this a consequence of non-random natural selection. You can say the same thing about the squirrels and the forest fire, even the seeds. The seeds due to their composition as determined by natural selection had the properties to be carried by the wind and therefore land on a new island where they could grow, non-random. Where the wind blows in principle can be wholly predicted in we had the ability to do so, technically non-random. The distinction seems arbitrary.
ohh my duck. This is soooo good. thank you so much 😀
using squirrels really helped, Thank you.
The one day before study-Amoeba Sisters about to come in clutch
So what is genetic drift
A heart for your way of teaching 💜
i got ta pik out my own wen i went trik or treeting
Hi, very beautiful video! But I don't understand why genetic drift, in long terms, affects large population…Coul you explain that to me?
this is by far the most adorable way to study evolution
Not me watching this before a uni final because I didn't understand.
Seriously, thank you.
YES! That lesson and that catchy tune! If learning was this interesting, I would have returned to the classroom with no need for online education.
Nice video 👍🏻
You can tell the person speaking in the video is a woman, because she keeps mentioning things in her explanation that have no relevancy to ensuring one's understanding of the subject. Stay on course – Keep it simple!
3:18 i am groot?
Wow, that was some really good pedagogic experience. Thank you so much!
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
I will literally send you a shipping truck full of gummy bears for helping me with my college stuff
Your videos have lifted great stress off my back. Thanks. Professors make the work so complicated…jeez
I'm genuinely sad for those squirrels
Stop talking about your personal life
We came here for work
Not to hear about your interests
Cut to the chase next time
i- IT WAS THIS EASY??? WHAT
I wish u could have included gene pool in this video
Cuz gene pool and genetic drift are kinda related
Superbe vidéo
Merci beaucoup 🙏
You guys make the concepts sooooo easy to understand..kudos to you guys.. keep it up!!
Best
wew this is very easy to understand thanks yo <3
super corny BUT very informative
Really helpful and interesting, and the videos are so cute! English is not my first language so learning these materials in university in the USA is not easy, but you helped me a lot! Now after graduating, I still keep watching your helpful videos to learn and review. My next step is grad school!
So, small population are more vurnerable to genetic drift than big population. Am i right?
The bottleneck effect is kind of confusing.
Me 'n' my homies love the Amoeba Sisters
Ok
"Notice me, senpai…" Is that from aa anime?
Please improve animation
Mam can u reply me a question:-
Is antibiotic resistance in a bacteria by chance an example of genetic drift????
Thanks
Genetic drip
your videos are cool!!! always come to you when find a difficult concept in studies!!!thanksss
Evolution needs genetic drift to fix some of its major problems in trying to explain the frequency and distribution of alleles….evolution only works downward, not upward
My biology teacher brought me here👁👄👁
PLEASE DID IT JUST SAY NOTICE ME SENPAI- HAHAHAHHA this is why I love this channel
My dearests amoebas, I'm a Biology teacher from Brazil and I love your videos. I wodering how can I add portuguese subtitles in you material.
Of course, some alredy have them, but others, like this one about Genetic Drift, has not. Can you help me, please?
don't care
bhnjobiuhoedve
dont know how id be going through this semester without this channel
bless your hearts. You have made every topic easy for me to understand that at this point LOOOVe and am fascinated
!