If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you at a glance what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom
SO HELPFULL!! have this for school, and normally i would flick back to the video and rewind to listen to the answer again but IT WAS LITERALLY STUCK IN MY HEAD BECAUSE IT WAS EXPLAINED SO WELL!
NOTES!!! Selective breeding: 1. Breed best plants/animals - to get better offspring: - Crops resistant to diseases - Cows loads of meat and milk - Friendly cats and dogs - Large, unusual flowers 2. SE is selecting for certain alleles that code for the characteristics we want, done by comparing, select ones with desires characteristics 3. Drawbacks: - Reduces the gene pool of the population (collection of all different alleles in a population) - Inbreeding - prone to diseases or inherited defects - Less variation - pathogen effect all of them, all the population wiped out
I’m enjoying this stuff a lot, what you explain on the drawback is making sense. Many even biologists teacher I studied from they always disagree on these ideas but from the beginning I alway have a doubt on it but since you explained like that, I’m more confident that in order to guarantee a great result while also secure the best strong plants, there always need to balance some plants for back up and never abandon the negative plants.
You’re very very welcome! Thanks so much for leaving us some comments! It’s lovely to hear people are using them, and also really helps the videos get seen on TH-cam 🥳🥳
Am from Nigeria and am so happy that I found this channel....your teachings are so understandable and straight to the point...thank you so much cognito❤❤❤
Hi. I love these for my students. Do you have worksheets for the biology from genetics, evolution, selective breeding and ecology etc. I use them for revision homework. Thanks
Hi Jack thanks for the support! I’m afraid all the worksheets we have are on TES. At the moment we’re working on the videos full time so it will be a while before we add the sheets you’ve mentioned. Sorry about that 🤦♂️ Thanks for using the videos and hope all your students do well :)
Pretty much, but only if they are of the same species. Different members of the same species can then be interbred for desired phenotypes. Those with desired phenotypes are then bred together until you get exactly what is wanted. They will then use asexual reproduction (cloning) to ensure all children have the desired phenotype of the parents. With technology we can now switch genes between species giving even more power and finer control. Edit: This is also why the destruction of wild ecosystems is a problem. It means we are losing the wild versions of domesticated species which means we are losing genes that could improve our crops. Wild versions adapt to change faster than what we grow on a farm so if a new disease emerges that is killing off our food crops, checking for resistance in a wild ecosystem that can be bred into domesticated crops is a good first step.
yes, for example sexual trafficing or abusive families forcing reproduction, or in the royal family keeping the gene pool "clean" or designer babies in genetic modification
yes, for example sexual trafficing or abusive families forcing reproduction, or in the royal family keeping the gene pool "clean" or designer babies in genetic modification
Just did my Bio Mock paper ( I'm in year 9) confident to say, I aced it, seriously, im talking like a 80%. Thank you so much Cognito, Time to tell my whole family.
If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you at a glance what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.
Amadeus & Tom
SO HELPFULL!! have this for school, and normally i would flick back to the video and rewind to listen to the answer again but IT WAS LITERALLY STUCK IN MY HEAD BECAUSE IT WAS EXPLAINED SO WELL!
Thanks Charlie, great to hear it helped 😁
im sure these are helpful, but im just skipping through them bc its a school assignment
same here
no bad boy
No
Samee
SAmeeeee
NOTES!!!
Selective breeding:
1. Breed best plants/animals - to get better offspring:
- Crops resistant to diseases
- Cows loads of meat and milk
- Friendly cats and dogs
- Large, unusual flowers
2. SE is selecting for certain alleles that code for the characteristics we want, done by comparing, select ones with desires characteristics
3. Drawbacks:
- Reduces the gene pool of the population (collection of all different alleles in a population)
- Inbreeding - prone to diseases or inherited defects
- Less variation - pathogen effect all of them, all the population wiped out
Tyyyyy bruh
U derevese way more views for your videos there really helpfull and i love the visauls
Thanks!
Me to
deserve
I loved the narration and transition of the video...thanks!
th-cam.com/video/U0ECof9qzpw/w-d-xo.html
I’m enjoying this stuff a lot, what you explain on the drawback is making sense.
Many even biologists teacher I studied from they always disagree on these ideas but from the beginning I alway have a doubt on it but since you explained like that, I’m more confident that in order to guarantee a great result while also secure the best strong plants, there always need to balance some plants for back up and never abandon the negative plants.
Simple but excellent explanation.
Thanks
th-cam.com/video/U0ECof9qzpw/w-d-xo.html Exam question
th-cam.com/video/U0ECof9qzpw/w-d-xo.html
HAVE A WATCH OF THIS EXAM QUESTION...Comment if you can all the marks. #StaySafe -RA
Very helpful... this is way better than the revision guide.... thanks alot😘😘
You’re very very welcome! Thanks so much for leaving us some comments! It’s lovely to hear people are using them, and also really helps the videos get seen on TH-cam 🥳🥳
my teacher sent me here in home learning exactly 2 years after the videos upload
This was really helpful
I actually got an 100% on my exam based on this thank u for this video
That's great!
Am from Nigeria and am so happy that I found this channel....your teachings are so understandable and straight to the point...thank you so much cognito❤❤❤
Thanks! This helped a lot and it deserves more!
Hi. I love these for my students. Do you have worksheets for the biology from genetics, evolution, selective breeding and ecology etc. I use them for revision homework. Thanks
Hi Jack thanks for the support! I’m afraid all the worksheets we have are on TES. At the moment we’re working on the videos full time so it will be a while before we add the sheets you’ve mentioned. Sorry about that 🤦♂️
Thanks for using the videos and hope all your students do well :)
So if you have a small gene pool how do you expand it ? Do u grab more plants from outside your greenhouse?
th-cam.com/video/U0ECof9qzpw/w-d-xo.html Subscribe to this channel= Exam questions included
Pretty much, but only if they are of the same species. Different members of the same species can then be interbred for desired phenotypes. Those with desired phenotypes are then bred together until you get exactly what is wanted. They will then use asexual reproduction (cloning) to ensure all children have the desired phenotype of the parents.
With technology we can now switch genes between species giving even more power and finer control.
Edit: This is also why the destruction of wild ecosystems is a problem. It means we are losing the wild versions of domesticated species which means we are losing genes that could improve our crops. Wild versions adapt to change faster than what we grow on a farm so if a new disease emerges that is killing off our food crops, checking for resistance in a wild ecosystem that can be bred into domesticated crops is a good first step.
Used this and all genetics related videos for a school research thank you!
IM GONNA GET A GRADE 8 OR 9 IN GCSE. IM CLAIMING THIS
Here for school, would diss the vid but it’s actually interesting
😎😎
I have question. Has there been selective breeding in humans
Yes
yes, for example sexual trafficing or abusive families forcing reproduction, or in the royal family keeping the gene pool "clean" or designer babies in genetic modification
yes, for example sexual trafficing or abusive families forcing reproduction, or in the royal family keeping the gene pool "clean" or designer babies in genetic modification
Yeah but HOW do they selectively breed the plants?
Eugenics is literally just applying this theory and practice to human beings.
1:55 🤨
Mind explaining cognito???
bro chill
These videos are very helpful, could you do videos for geography too?
Litrally the best channel!
POV your teacher made you watch
Never say I love just say OOOOOOO meanwhile : Goodnight daddy and OOOOOOOOOO 😊 Dad : My child are u possed ! 😮😂
very helpful
I LOVE THIS CHANNEL SO MUCH
Going to pass Biology now💪💪💪
Just did my Bio Mock paper ( I'm in year 9) confident to say, I aced it, seriously, im talking like a 80%. Thank you so much Cognito, Time to tell my whole family.
thankyou so much for this appreciate this a lot i was super stuck in this .
0:36
one big buff babe cow.
😶😶
Ironically the drawbacks of selective breeding can be resolved by selective breeding
What about selective breeding in people? How come they don't teach that?
ELearning anyone?
Yup
th-cam.com/video/U0ECof9qzpw/w-d-xo.html
HAVE A WATCH OF THIS EXAM QUESTION...Comment if you can all the marks. #StaySafe -RA
Mankind should have just left everything the way it was designed to grow naturally.
Great thanks!!! ✨
Hello, sir, why are you so smart?
How do u think humans got here how do u think all life got here. Selective breeding.
Your videos are soo good
very good video
We go to zapperland
Best vids ever
1:53
Lovely
It's very useful
Very very educational for my studies
incognito
Ahhhhhhhhhhg maaaamammamamamamamama😂😂😂I 😢😢😢😢😢😢😢😢😢😢
Lokiii
I CAN DO THIS
love you cognito
Ur comment was the most recent 🥳🥳
Not anymore
Hiii
sooooooo useful
Mrs Babra