Linkage and Recombination, Genetic maps | MIT 7.01SC Fundamentals of Biology

[@fife8332]

These students don't realise how lucky they are to have a professor that cares about what he's teaching.

[@cmeproductions9034]

How do you know that they don't realize? Speak for yourself.

[@anshaj4815]

They have worked hard to get there and they do realize it

[@michaellonauer2934]

I study biology in Vienna/Austria and i have to watch online lectures from MIT and Harvard to really follow genetics. Lander is really great!

[@Blodymorgan]

same here! ;D

[@lohannemoretzvandeviere7036]

You, sir, are a genius. You made me fall in love with Biology again. *applause*

[@eq5761]

in 40 minutes i understood what i didnt in 6 hours. Such an amazing lecturer. Thanks a lot for that brilliant lecture !

[@Beonrightside]

I feel so blessed having this lecture for free , thank you MIT

[@mangarific1]

I study genetics, but im literally here watching his lectures for FUN. What the hell, if every teacher was as competent as this man, the world productivity would be through the roof.

[@manuraikoty8166]

You are from which university dude

[@malvika9196]

Learning genetics from Eric Lander himself.. this is nuts! His explanations are so clear :D

[@danielmoskalenko8458]

I'm from Central part of Ukraine, this is a great lecture, easy flowing teaching strategy. Classical type of integration making complexity down to simplicity.

[@mariewebb4778]

That was so good, why can't the lecturers at my University be that good :o feel like I learnt more in that 30 minutes then in a one hour lecture :) he's the real MVP

[@afnanm9564]

FOUR FREAKING WEEKS OF CONTENT IN ONE VIDEO, I SPENT 10+ HOURS TO STUDY FOR THIS AND U EXPLAINED IT IN LESS THAN 40 MINS.

[@romaissach497]

in less than 40 minutes I understood what we had in a week and i couldn't understand it! seriously Thank you Mr.Lander and for the crew who made these courses available online.

[@nyluong5427]

He's obviously passionate about what he's doing! We need this!

[@朱星宇-s9s]

This whole series of lecture is impressive! Thanks for sharing!

[@bettyboop9847]

Mr. Eric Lander, I wish you were my teacher! You make learning so interesting, do you know that?

[@richardnguyenduong]

The best lecturer I've ever seen. Thank you for uploading MIT OCW

[@kevinhall3188]

So thank you Mr Lander for your teaching rarely witnessed verified by comments below. Most teachers / lecturers from when education became institutionalised career ambitions are to get out of the class room one way or another. Teaching properly is very demanding in presentation, tiring physically and assessing whether students are picking up on the lesson and when to break, loop, review, change tack and review. There are other very good teachers on line Bob W for cancer and Lewis F for bio.... and I enjoy and partially get the gist of their content. If all teachers were like these guys kids would whole heartedly embrace education......

[@aryaabadsafian5764]

wow, very well done! Very high quality lecture and very encompassing. It helps to find material similar to what you are learning in class. Everything he said took 2+hours for my professor to do and with less confusion. Give this guy a medal...

[@brylanjacobs7776]

You know, we lose so much fire the more we study and the more we make science so clinical and analytics. Thank you for uploading this! Doing my masters degree and spending so much time doing tasks and analysing data really takes away from the notion that science is so exciting and interesting! Really would love to meet him one day

[@pratitibanerjee7621]

Thanks for helping us out. Wish everyone had the same passion for the subject. Thousands across the globe are indebted to you...!!

[@AdityaKumar-bi1ge]

What a fantastic teacher "Eric Lander" Hats off.

[@Kymv8382]

So much passion in what he’s teaching

[@Hannah-ks7ri]

I'm a high school student doing IB, and this is so useful, my HL bio teacher suggested it to me.

[@ruddhanandamahapatra1704]

I'm blessed 🙏🙌 to watch 😇 this learning from youtube ❤️ thank you Eric Sir and MIT for explaining and solving doubts

[@jasmineheath6183]

This made my teacher look like a dead fish in comparison.

[@ahmedmosadalameldin3135]

that's a good analogy :"D

[@alessandra7842]

True

[@shivamprabhavale7813]

you made me fall in love with genetics again

[@Bigglesworthicus]

This guy is a top-tier teacher.

[@sajeda2011]

If only my genetics class was this fun...maybe i wouldn't dislike genetics so much. This guy is amazing!

[@camfuse]

Thanks for posting this great lecture! This is exactly what I needed to understand the concept.

[@Tobylivesob]

This dude is awesome. Helped me lock down some knowledge before my test!

[@humbertoluebbert7968]

Pretty good lesson, thanks in the name of me and all of us who didn't had the opportunity to attend in MIT

[@agborja5097]

Excellent type of teaching! I commend you, Sir Lander. Oh, how I wish that I am in your class.

[@ahmedmosadalameldin3135]

But you already are, thanks to the internet.

[@shubhojitdas4174]

Hon'ble sir at 29:31 I think it should be black to cinnabar instead of black to vestigial wings as we had already found it as 17% with the above cross. So it's black to cinnabar.

[@sophiagomez5619]

We had a bit of a problem, our dear Mendel... Me: DIED. Tragic. *sheds single tear*

[@sadoqatxonnurmuhammatova4086]

Great teacher.I wish I could attend his lectures!!!

[@khloudfathiabonar3008]

best lecturer ever

[@siddhantjadhav83]

the best teacher i have ever seen

[@mistree0007]

you really have a talent for teaching. :-) this was very understandable. thank u

[@girisharanj88]

"you are all authorized to blow off your homework, anytime you make a discovery like that" lol...

[@ofoxofox1]

oh, just noting that 1:3 ratio = 1/4 of times for one event to happen and 3/4 chance for the other. Anyone would slip on this detail, and maybe few captured this! Wonderful classes, maybe one day I can do one which is this good!

[@bronwynchetty8007]

What an amazing lecturer!

[@user-zh4mu7ki4t]

Cant tell how thankful i am...😍😍

[@toluadedoyin.o]

woow AMAZING proff!

[@emilie1370]

29:08 somebody's read textbook at home *applause*

[@sreevidyatanjavuru7049]

thank you excellent lecture

[@Muhammadusman-uf7js]

No words to explain my expression

[@kanchanpriya2193]

Awesome lecture! I wish if ur r my bio teacher........ My bio teacher just read the line of book nd then say this chap is done........

[@stinkyslinky432]

Eric Lander makes $800,000+ per year. That's nuts. (He's the instructor in the video).

[@cicixm]

Geeesh

[@epshitamanashi7519]

deserves it.

[@bracemebraceme9233]

I really liked this speech, and how the teacher presented it. Though there are some points I couldn't get what he said :D

[@lohannemoretzvandeviere7036]

That end note on Mendel tho.

[@kuruptgt]

This professor has really nice handwriting.

[@imagination7710]

So if Mendels theory that all alleles assorted independently was correct, test crossing the heterozygote with the homozygous recessive would mean a 1:1:1:1 genotypic ratio of progeny. If the chromosome theory that alleles for body colour and wing shape are found on the same chromosome was correct, the genotypes observed in the progeny would be only those conserved through the F0 and F1 generations, without the recombinant types (i.e. b+ and vg+). As recombinant progeny were observed but in lower ratios, the conclusion was drawn that the genes are indeed linked, although there is some form of crossing over occurring between homologous chromosomes during meiosis.

[@chintusct5258]

13;20 this is what makes him great teacher

[@meghasharma5946]

Meiosis was discovered before the discovery of Morgan's recombination. In meiosis chiasmata formation is already discussed. Then, how Morgan was shocked to know about recombination or that chromosomes cross each other and form chiasmata ? Can someone explain ?

[@jmrjmr8254]

How could someone dislike this vid?

[@OnlyBlix]

***** Speaking of failing, it's must HAVE, not must of.

[@melody8116]

wishing to have a lecturer like his karisma in Iraq !

[@sanjivkumar3862]

13:23 i am your fan

[@snowinis]

He's way better than my professor

[@danbev4738]

This guy is great

[@thefenerbahcesk4156]

What kind of food do they have at that tech fair?

[@kashinshetty8377]

I love this person

[@medicalstyle9330]

Wow what a lecture!

[@belindagorsuch2421]

GENIUS MAN THANK YOU

[@doge-coin]

Thanks for the great lecture!

[@tpinpu]

thank you ... it was much needed... great help....

[@muhammadsajid-ow5jg]

They have done a mistake the cross is between Round Yellow and Wrinkled and Green.

[@jonahansen]

Big mistake at 29:20, about. Should have said and written black to cinnabar as 9% or 25%. Nobody pointed it out, which means...

[@vishalbaghel5756]

I also noticed that

[@hermangarcia545]

No lie, I felt really bad at 4:50 because he told us that the alleles on a gene are not dominant or recessive, they just control the dominant and recessive phenotype. I failed him. :(

[@SanDiegoOfficial]

or maybe mendel lied and said fuck it i'll pretend that phenotype didnt happen

[@jamesgordan1575]

lol he really found linkage but he did not report it . brilliance :)

[@bhaskarsrivastava9653]

Love from indian student

[@bernardoabreu4910]

Brilliant...

[@ashishojha4306]

great lecture !

[@jamram2003]

Thanks. Very helpful lecture..

[@sajeda2011]

I feel like I've seen him before in several NOVA episodes.

[@poras1513]

Thnx

[@231mac]

8:28 Boy, MIT spares no expense on erasers!

[@bradleykobilka9549]

Yellow is dominant in Peas.

[@cfrisbarov8817]

Just perfect!!!

[@ProfSardarMNiaz]

Round Yellow × Wrinkle Green

[@sriparnaghosh5361]

F0 generation should have been Round, YELLOW seeds Vs Wrinkled, GREEN seeds.

[@meghasharma5946]

At 4:50 he says "Are those recessive alleles?" and then he explains that they are alleles assosciated with the recessive phenotype . They could also control multiple other phenotypes,some of which could be dominant. So, is he talking about epistasis effects??? Can someone explain this statement ??

[@evans9303]

An individuals heterozygous for Tay Sac disease observed from outside appears normal. ( Dominant allele is suppressing the recessive allele) But when observed at molecular level, the dominant allele and recessive allele show incomplete dominance and both produce functional and dysfunctional enzymes ( enough functional enzymes work to metabolize certain lipids in the brain). So He means "recessive or dominant " depends on the level (organismal, biochemical or molecular) you observe a phenotype. I hope this helps.

[@ProfSardarMNiaz]

It's not Round Green but Round Yellow with wrinkle Green.. There is mistake from professor side..

[@ProfSardarMNiaz]

Sorry round yellow with wrinkle green RRYY X rryy

[@wisdomedemanyomi5827]

on point

[@southernhemi1]

amazing, thank you

[@guilhermep.17]

GREAT!

[@Bio2.0]

Dear, Sir i have a question. How can you represent alleles of different genes by same [+] sign , even though they are wild type shouldn't we use different signs for normal wings(wild) and normal body color(wild) ?

[@ritobratochatterjee7358]

awesome

[@sebastianva121]

sorry i didn't get everthing may be becaz of ma lower understanding skills ... i think still hes good

[@philomenaofoi9045]

too good!!

[@josephtoledano9064]

How does Lander do the crosses from each generation??

[@samuelo.c.4813]

Great

[@BillieBaby143]

Wish I went to MIT lol.

[@BREA525]

great professor but i think there is a mistake on 11:30 but no biggie

[@aguven]

+Dre Flowers yea but it will prbably be confusing to someone trying to understand. Even I had to stop the vid. for a sec. to check

[@ericd6358]

With the 1:1:1:1? Yes I believe it should be RG rg Rg rG

[@leverdo1166]

I think it should be RG rG Rg rg & 1:0:0:1 or it can be RG rg Rg rG & 1:1:0:0.

[@Happybunny06]

Woah is this freshman level bio? I'm a senior in genetics barely doing this.

[@sidul4337]

Good

[@malemnganbatakhellambam3527]

I want my teacher to watch this video

[@iamwill.ritchie]

Eric Lander. aka 'BadAss'

[@anaraserikbek92]

true true true truuuueee!

[@lovepreetsinghbagha3033]

5 stars

[@thefinestofthetime]

I want to go to MIT. I am going to MIT

[@md.aniruzzaman3381]

It will be b-cn 9%