Genetics: Linkage Problem #1: Map Distance, Coefficient of Coincidence, and Interference

[@keiraalbano2184]

You just taught me 2 weeks of genetics in 12 minutes. This is amazing.

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I was literally just going crazy because I have an exam coming up and I was so lost even after watching all of my professors lecture videos. You made things so simple and straight to the point THANK YOU SO MUCH!!

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Wish you were teachiing my genetics class. Thank you for the clarity.

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The billion dollar question was the question I needed answered to solve all my problems

[@sophiad123]

I have been looking EVERYWHERE for a video explaining double crossovers and linkage like this. You explained it perfectly to me, I feel way more confident on this subject! THANK YOU, THANK YOU, THANK YOU!!!

[@CatalystUniversity]

You're welcome~

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Thankyou I got my transmission genetics test tomorrow

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I never comment on these things, but this was the BEST VIDEO related to genetics I have ever seen.

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My lecturer couldn't help me understand this in 1 semester and you did it in 12 minutes. Thanks a lot you are a life saver.

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My sincere gratitude for your generous assistance. Your support has been invaluable, and I am truly appreciative of your guidance. With warm regards from Bangladesh

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Made my professor look like he was overcomplicating EVERY step. Thank you!

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I thank you from the bottom of my heart because you literally might be the reason I pass my genetics exam. This tiny moment of relief gives me hope that I can and should remain in my pre-dental program. Thank you so much.

[@CatalystUniversity]

I'm happy this video was able to help you!

[@sujitbiswas268]

This video changed my genetics exam 😍

[@emmasalminen3930]

Of all the videos on this topic, you made it the most simple and easy to understand. Thank you!!

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This saved my life!!! My prof put this on the exam and didn't even teach it to us.... this is saving me for my final!! Thank you

[@ayronmoleen8153]

You’re an angel sent from genetics heaven. Thank you sir!!

[@CatalystUniversity]

Glad this helped, Ayron!

[@legenarymaster3696]

You are absolutely amazing. Something made so complicated by my teacher is beyond simple when explained by you.

[@thegoonerz]

I cannot leave this without saying thanks. Tomorrow is the exam. You explained it really well. Thanks, Sir.👏🏼

[@ankit8930]

Thank you so much Sir. After going through most of the videos on this topic this was the most clearly and easily understanble. It will come for sure in my semester exam . Thank you again 😊

[@CatalystUniversity]

Thank you so much for the kind words, Ankit.

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Did u just ask if it made a little bit of sense? Oh my God, u just saved me from going bunkers. I watched several videos on this problem and tot to myself, this is the end! Until I came across this. Thank you and God bless u sir. It made a gazillion sense.

[@zerowolf137]

This is probably the best example of a 3 point test cross. I was so confused.

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You saved my life and now you are my dad (2) Thank you so much

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I have my exam tomorrow and I understand this so much better now! Thank you!

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[@adrisha7520]

Thankyou ❤ you explained it so well.. I'm speechless and so full of gratitude... This is the best video i have seen so far..the best...i literally watched more than a dozen videos, but this one really helped...others aren't helpful

[@nicoleouellette2694]

THIS. Thank you for making this video, so much more helpful than a professor posting lecture videos or reading the textbook.

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OMG how do i like this a million times!!!!!!!! thanks a lot this was so much easier to understand

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[@CatalystUniversity]

Thank you!

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This man is a miracle worker 🙌

[@xxxxxv_lll]

Thank you so much for this video. I’m gonna have an AP bio test for genetics soon and I was going over my Mastering Biology and came across questions similar to the ones in the video. I was wondering how the answers were 12 and 5, but your explanation helped a lot.

[@kanikatripura6211]

Thank you for making it much more simpler compared to how our professor made it sound which I literally don't know what out of it...thanks a lot,

[@williammango80]

from Portugal, big Thank you for both of the videos! they helped me a lot

[@danielpinchas5972]

This was by far the best genetics video ive seen so far on youtube. clear and good explanation. thank you

[@simrannisha8793]

vrry very helpful sir anytime i have a doubt comeback to this video LITERALY HELPFUL

[@haninelee]

i just want to say A BIG THANK YOU YOU SAVED MY LIFE

[@michaelachampagne5260]

I never comment on anything but you just made my night. I had no hope of figuring this out on my own!

[@aireenshazwani1403]

you saved my final marks, no words could describe how grateful i am *cries

[@bt-poulomibanerjee7371]

ohh my god!!! I was so confused with this topic before I watched this video.....thanks a lot sir !!!

[@lilligaspard7024]

Thank you soooo soo much for this video, I had a lot of problems trying to solve these gene maps and you finally helped me do one on my own without any mistakes!!! Truly the best video regarding this topic!

[@KrishtiBhattacharjee]

Thank youu!! This is a life saver. Unfortunately, i still have to apply the complicated and longer methods in my exams... But this actually helped me understand everything. I feel like a weight has been lifted!

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You literally saved me just a day before mu genetics paper❤😂😂

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This was amazing oh my gosh thank you so much!! Never stop helping people and teaching, you're amazing!!

[@CatalystUniversity]

I will continue! Thank you

[@help.chiakinanami.1789]

THANK YOU FOR SAVING MY MIDTERMS

[@eznahsheel1071]

This explains incredibly, thank you.

[@ira4770]

My exams in 1 week and I missed the online class... thankfully this video exists

[@이도성123]

Love U, saved me from retaking genetics

[@graysongretzinger951]

Youre amazing man. Only got tripped up once and I missed the lecture for this.

[@AriannaGama]

This helped so much, I finally understand!! THANK YOU!!

[@moumitabasak3084]

I couldn't figure out how the genes are located in the middle,you help me

[@summerfatima2525]

Thank you for this video it explained things perfectly ! I admire the amount of detail you put in - whether that’s noting coc formula computation gives error from math to having to add individual subunits for total centimorgan length … everything is mentioned ! You are an excellent teacher and just gained a new subscriber ~

[@davideisenstadt3745]

you save my genetics grade my man; thanks so much

[@curlymeg2173]

Wow, this tutorial helps so much. Thank You

[@CatalystUniversity]

Thank you, glad this helped!

[@lauracallan8119]

Omg thank you so much, I was so confused and this is the first time everything has made sense

[@wikparla8408]

This is so well explained. Thank you for this video !

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This video is amazing!!! It made everything seem so simple. Thank you so much!!

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you are a GOAT (Greatest Of All Time) Thank you for the great explanation.

[@CatalystUniversity]

Thank you!

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If I'm writing S.C.O I & II as P.C.O I & II Is it wrong??? Please reply me it's very urgent

[@DILS_in_scince_and_biology]

thx dude u make me pass the genetics exam

[@adrielisaacs1998]

You taught this 2 week topic in 12 minutes. Thank you sooo much, it really helped me understand.

[@maryjoe6918]

Thank you so much. Clear explanation. God bless !

[@alexu176]

Bless, you didn't explain what meiosis is and helped me visualize what's going on! :D

[@naomives96]

Isn't the +b+ a double crossover if the parentals are +++ and abc? I don't get it.

[@esahoosa]

Omg so helpful! Was trying for a while to figure this out, never thought it was this straight forward :0

[@CatalystUniversity]

Thank you!

[@isaiahdrye218]

Thank you for being a real teacher ❤️

[@plantsthesilentbeings1860]

Very helpful... Can you please make a tutorial video on calculation of recombination frequency and then drawing linkage map.?

[@sadafs7729]

best explanation on this topic! thank you!

[@CatalystUniversity]

Thank you!

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Throughout heaven and Earth, YOU ALONE ARE THE HONORED ONE.

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very clear explanation.. thank you very much.. keep it up the good work

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Watching this 1 hour before my final

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[@bijitchakraborty4463]

I learned that, C.o.c = observed d.c.o./expected d.c.o. ... And I can not relate your said c.o.c formula with mine... Can u please tell me are they both same?

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Best explanation on this mapping lecture👍👍👍👍 Thank you sir Sir first time visited to this channel & already subscribe

[@sehrishbashir7002]

This was truly amazing!! Such Profound explanation!! Thanks alot!

[@CatalystUniversity]

Thank you!

[@hortchannel]

this is just what I wanted.Thank you .

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Thank you so much for this explanation!

[@Moni0401]

Its really very useful and very clear to understand😊😊😊tnq❤

[@sreemotichatterjee4345]

outstanding one... thanks a lot sir

[@connorkrilow9220]

Waheguru ji. Organize in descending order

[@jacquelinealipo-on4040]

May I ask why is a is in the middle? I don't understand why because letter B is in the middle in phenotypes. Thank you.

[@kyleisbored7465]

Hold on. Correct me if I'm wrong but centiMorgans aren't additive so you can't just add the distances between C and A, and B and A to get the distance between B and C. Thanks for the video, btw.

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Thanks 💜💜💜 I hv test today...nd u save me

[@mariammohammed1146]

Thanks very much! This is extremely helpful!

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you sir, are a legend ..........

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[@rose-rb6ii]

A BIG THANKS TO YOU SIR!

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Thank you, this was helpful and clear!

[@nyluong5427]

Very helpful! Thank you!

[@CatalystUniversity]

Thank you!

[@James15412]

thank you!!!! you saved my life

[@Phyto.]

Thank you so much!!! After hours upon hours of struggling, it finally makes sense thanks to you! Liked and Subscribed :)

[@Sluggertherunner]

Thank you! This was perfect!

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Really your life saver 😭❤️

[@johntough7936]

Excellent video. Very clear.

[@Gor4n640]

very nice!!! ive learnt so much tank yow''

[@nabilakkari2488]

Hey thanks for this video! it is so clear and easy to understand!! :) i just have one problem... When i'm calculating coc i'm getting 73.31378... This is my calculation (i'm sure i have no errors with the calculation/computation); coc = {10+15/((15.5/1000)(22.0/1000)(1000))} = 73.31378... which is completely wrong as Interference is less than or equal to 1 and greater than or equal to 0. however your getting 0.733 what am i doing wrong/missing? thanks would be great help :)

[@nabilakkari2488]

Hey thanks for your reply, i am dividing by 1000, and that gives me 73.31..., I've seen in your video your dividing each of the distances by 100 to get them into M (morgans) e.g. 15.5/100 =0.155 morgans NOT 15.5/1000 which equals 0.0155 and we know as the denominator approches 0 the coc approaches infinity, so i guess that is where i fault. thanks :)