GCSE Biology - Genetic Engineering #82
ฝัง
- เผยแพร่เมื่อ 11 ต.ค. 2024
- Genetic engineering allows us to move genes between different organisms and even different species. This has revolutionised agriculture and potentially saved millions of lived. Learn how it all works and why some people still don't like it.
A related video is 'Selective Breeding' - where we explore how mating the best offspring together again and again can completely change a species:
• GCSE Biology - Selecti...
NOTES!!!
Genetic engendering:
1. Find organism with desirable characteristic, take the gene responsible for that trait, transfer it to another organism so it develops the same trait - we modify the organism’s genome , it’s now genetically modified (GM)
2. Examples:
- Drugs in speep’s milk extracted to treat diseases
- Bacteria to produce insulin, which is then harvested and used treat diabetes
- Crops to improve the size, quality, becoming resistant to diseases, insects, herbicides
- Golden rice (beta carotene, prevents ppl from going bling)
3. Gene therapy:
- Giving a person the healthy version of gene
- Transferring at early age, gene passed to every cell
4. GM crops:
Pros:
- Easily desirable characteristics (more fruits, resistant to diseases)
- Less money
- Help developing countries
- Plants to produce special nutrients
Cons:
- Don’t know future effect of GM crops
- GM plants outcompete local plants, change ecosystem
5. Transferring the gene:
- Find the gene, cut the section of dna with it out using enzymes, insert a gene into a vector (virus/plasmid), introduce the vector to an organism, organism cells take up the vector with the useful gene, they start producing that protein needed
hey i have question
how do i answer a question which asks how a plant is genetically modified with a gene that is already in a vector(bacteria) specifically the gm of cotton plants with bacillus thuringiensis
You can genetically modify a cat to make it glow faintly in the dark, using bioluminescent algae or fish. Black cats glow orange and white cats glow green :)
1st
@@pixelplayz540 yeah man thats nobody else cares enough to comment, ur not special... well maybe not in the way you think you are 😂
@@calmingnature-whitenoise6945 😂😂
@@calmingnature-whitenoise6945 fix ur english first then talk
Cool!
Currently using these vids for my mock exams. Literal life savers
his voice is so soothing that i forget that i have that assigment 2 days late
My teacher told me to watch this
Sylvia A I don’t remember asking
@@adee7h Sylvia A "it is what it is"
@@adee7h then they weren't talking to you ;)
No one asked
@@kingmcclavin calvin stop being a weirdo
you forgot to mention the names of the enzymes used to cut out the gene in genetic engineering. its called a 'restriction enzyme'. Also 'ligase enzymes' are used to rejoin the DNA strands. I feel like you probs shouldve added this in, as it was a question on my mock paper.
yeah its also in the specificatin so it should be added
Frr i couldn't find this info anywhere but most of the new papers have these type of questions
so how would i answer a 4 marker or six marker question on this ? x
@@mynameisjennette6170 there isn't always 6 markers for those but I found some points from another youtuber
Here are the stages to genetically modified bacteria
• isolate the bacteria plasmids
•plasmids are vectors
• open the plasmid using a specific restriction enzyme
• extract the target gene (example insulin or whatever)
• using same restriction enzyme
• join the gene with plasmid using ligase
• forming a recombinant plasmid and re-insert into bacteria
Hope this helps 💗
@@Aurynixj lifesaver
I have watched so many videos and this is the first one that actually makes sense to me! thank you!!
my gcse biology paper 1 is tomorrow, thanks for this
Bruh this is paper 2 content
@@bassamhadi7930 this person lowering our grade boundaries 😂😂😂
my teacher told me to watch this too! :)
Same
No one asked
@@mitaaslam4273 they weren’t talking to you then.
@@joeytitan7336 shut up
@@mitaaslam4273 fuck off
my IGCSE biology paper 4 is next week, tysm for this
sameee , mine is next tuesday
@@Jadeuuuuu same
literally in class rn learning ab this but my teacher is shit at explaining so i’m learning it from here
@mii64 ?
Great explanations.... easy to understand..... thanks
GSCE’s anyone?
sadly :(
@@isabellaaslam9372 RIP :(
RIP THE deam
Sorry, I’m not doing GSCE’s ☹️....But I AM doing GCSE’s!
@@user-xo4iz6nf8f that makes no sense
Does genetic engineering work on a teenage human... just curious to know
For scientific purposes...
well it must be modified when we are not even born so that the mother can use that dna to grow that specific baby
Lol
@@JoseRamos-hp2vg they dont want to make a genetically modified human due to the fact that if they are superior there will be competition
Hello
I don’t understand why it’s a concern if genetically modified plants spread to the wild and change the ecosystem I don’t get the problem does it cause a bad effect?
@Mariam Wael
It's because some plants are genetically modified to withstand herbicides (weed killer) so if they spread out into the wild, they could breed and create 'Superweeds' which won't die if you treat them with herbicide.
Hope that helps😃
If the gm crops make it 9ur into the wild they will out compete the crops that aren't gm
decreasing biodiversity and so when the ecosystem is disrupted it can cause plants to reduce in population and possibly go extinct
It's similar to the concept of releasing grey squirrels in the UK and it out competing the red squirrels reducing their population significantly
If u did/get to do ecology, which u might not cause of this bis, your teacher may explain the concept better then me
@@rabbitman8535 this helped me understand, thank you!
@@Michiwouldnever 👍 good luck with your exams
@@rabbitman8535 thank you!!
Don't mind me. I'm just hear 'cause of quarantine.
Same
My teacher made me watch this
No one asked
@@mitaaslam4273 Don't need no ones permission to talk.
@@mitaaslam4273 No one asked you to say anything either-
@@mitaaslam4273 noone asked your opinion
@@mitaaslam4273 plz shut the fuck up
you make it super simple man. thanks
can i make my child able to re grow limbs using salamander DNA?
It might be possible in theory but I assume it's quite hard to actually make it happen
I literally love your channel
don't we have to know what enzymes are used to cut out and transfer the gene?
Yes we have to know.
Restriction enzymes cut outs the gene
Ligase enzymes joins the gene with the plasmid
@@moazmemon9667 i dont get it..
This really helpful, thanks!
Cognito, can you do Biotechnology?
anyone else revising for mocks lol
i am private
I got 3 A s coz of u 🥰🥰🥰
thanks soo much this really helped
who tf watches these videos for entertainment
no one..?
Very helpful
2:32 🎉
what font is that?
I think it's handwriting but it's so nice skdksk
san serif
THANKS
Now it 2022 and my teacher make me watch this
Very good
why am i here still
cuz ur dumb
just to suffer
jk
@@twopolaar599 I'm free from it now, you're gonna make it
I asked my students to watch this
Ok?
Reallyyyyyy wowww idc
when did i ask
how to study genetic engineering after 12th
read
thanks!
real GM
he has a funny voice
beat to it then
@@adamkhamashta8162what
nitrogen cycle plzzzz
hi
hai
bye
ly bae
ur welcome
okay i fall asleep
same
Shouldn't be talking about ethics of this.
shutt up
This really helpful, thanks!