Complementation | MIT 7.01SC Fundamentals of Biology 

moral of the story: don't share needles

Robert is a badass

This made SO MUCH SENSE!! The knitting example helped me so much!! Thank you!!

Robert seems chill

thank u so much i'm korean student i studied this in 2days, but i did't understand nothing in internet can help me finally i found this video and undetstood. thank u so much thank u robert

the knitting analogy is the best way to explain complementation testing. Brilliant

That knitting analogy is actually very helpful. Thanks! :)

Well, this video just summed up contents from an 1 hour lecture. Brilliant vid!

Robert is a chiller.

Brilliant example !!! It's just that to make it complete, we can add: " ... it's just like you can't knit with only yarn and no needles", following the example of "with only needles and no yarn." :)

And now do "Fun with Flags"!

Omg, THANK YOU! Makes perfect sense now. Love the knitting example :)

That knitting analogy was pretty fire actually made me understand the topic more

lol how many reshoots did you need? seems like it would have been a giggle fest

Very insightful from the start already. Thanks Genevieve :)

THANK YOU Robert!

Thanks Robert x

Love you Robert

this video really helped me understand the concept! Thank youuu :))

thank you so much! if only my TAs can explain it as short and as straight forward as this.

Awesome example, cleared up complementation for me

Awesome, thank you so much for posting this! Really helped me :)

So helpful!!

THANK YOU

I will remember the knitting pathway for sure.

super helpful!

Haha. You guys are awesome! Thank you for posting your videos!

This is excellent!

Great explanation.

Yes, this cleared it up for me as well. Thank you. But you shouldn't share needles. It spreads diseases.

Thanks. It was really helpful.

Great vid! Really helped :)

OMG THANK YOUUU my genetics exam is tmrrow morning and this is so confusing

This was helpful!

Thank you (:

saved me!!!! test today

A+ example

Thaaaanks :)

This apology of knitting isn't really the case though because if the mutations are in the same gene it means there are no functional copies in the offspring whereas if the mutations are in different genes there is one functional version still for each gene in the offspring. Its more like one of you having both needle and yarn and the other having nothing (complementation) or you both having nothing (non-complementation)

still you play with each other with needles

Jesus Christ what a wonderful example

Hello female Sean Carroll

So you guys are two chromosomes?