Genetics: Linkage Problem #2: Map Distance, Coefficient of Coincidence, and Interference

[@nathankinney1592]

This one explained how to tell what the middle gene was much better than the previous one. Thanks!

[@eiskola7811]

I still have a hard time understanding this

[@thegoonerz]

@@eiskola7811 Which part? Perhaps I could help :)

[@eiskola7811]

@@thegoonerz thank you for the offer but after a few times watching the video i finally got it (the part where you figure out which gene stays in the middle) .

[@thegoonerz]

@@eiskola7811 nice 😉

[@moon-yy1mg]

@@eiskola7811 I still did not get it☹

[@ericalvarez7731]

LIFE SAVER THIS IS THE VIDEO U NEED GUYS IF UR STRUGGLING DONT LOOK ELSEWHERE

[@TheIdentityBooth]

Best example I have seen thus far, direct no bs no stalling just straight to the numbers

[@user-ez3ks7mo1x]

who in their right sense of mind will dislike this video. Very well explained.Thanks

[@daniellagurning506]

as a senior bio major, this is the most beautiful video I have ever seen

[@AamnaBariPeace]

Finally cleared my doubts on DCOs and COC and Interference in a single video. Thank You, 💯

[@iambond233]

generally i donot comment in vedios but here i am commenting to make this type of vedios more and more and i pray god to bless you and thanks you to help me the night before the exam......

[@CatalystUniversity]

Thank you for the kind words!

[@Yazzyahm]

This was sooo helpful! I kept coming back to this video while I was practicing problems, and know I finally understand this concept. I haven't understood it for months lol I'm so grateful, thanks so much for your help!!!

[@CatalystUniversity]

Very good! Glad you've got the concept now.

[@陳致安-l3d]

Thank you, this saved my life.

[@layza8595]

I understood this video a lot more than the last one! My grade for my exam tomorrow thanks you!

[@CatalystUniversity]

Glad this helped!

[@cardiocosmos]

Thank you! Best doublecross video I have seen !

[@girlcode3564]

Both videos were extremely helpful, thank you so much

[@rinaisbored]

I finally understand what to do!

[@z-48-khadizaakter26]

Thank u teacher.u saved my exam💌

[@foziaaaaa]

Thank you.. Please solve more problems on this..

[@mellisaalvarez4859]

wow! This made so much sense. Thank you!

[@pranshumadaan8732]

Amazingly explained.

[@meltemmiacorapci]

You saved my life THANK YOUUUUU

[@johnguillen68]

I'm confused by why you changed the parentals and then it went back to what you wrote before at 4:48

[@faiqalal27]

realy clarifying my concepts.

[@eleamell9472]

Why do you have to add the double crossing over (in this case 6) when calculating the distance between the genes?

[@parambirjhass4148]

Thank you for the helpful video!

[@josh69hazards]

Did I miss that the double cross overs are 2 not 6? for the COC

[@mixedcreative]

Thanks a lot 😊

[@Phyto.]

Again, BRILLIANT! Thank you!

[@ajay1rana]

The distance between b and c is - all SCOs/1000 * 100 = 21.8 cM and not simply 14+9=23

[@warwasnotinvited]

I believe you are right, the DCO's have to be ignored for that bit. do you have an exam today as well?^^

[@ajay1rana]

No I was trying to solve a like problem and luckily I was able to solve only with your above two videos explanations but since I was trying solve question with answer given, so I though that I may be right in putting the above formula for farthest alleles....and so I inquired about it. Thank you so much

[@summerfatima2525]

Excellent video 👍

[@eleamell9472]

How do you see which letter is in the middle when you don`t have dco?

[@00dnd00]

So confusing that you went back and forth from +/A +/B +/C

[@stealth_surfing8608]

this video just confused me even more with the concept changes from the first. How is A in the middle when a double cross over would have to be c+b and +a+?

[@sohamchatterjee7836]

Sir, how you deduced that the 14cM is the dist btw a&c gene and 9cM(b&a gene)? I didn't get it....Why not the reverse?Can you please explain me? I would like to learn...

[@changeyourways9792]

I am wondering the same

[@martastaszak2432]

thanks man u save my life :D

[@sandipkundu7482]

best video

[@bananapotato7574]

thank you so much huhu

[@titoflash1212]

Thx Kevin

[@howtoppt000]

How do u know sco1 and sco2 is the distance of ac ?

[@rainlittledeergrace5756]

Thank you!!!!

[@marialuisa_fitnutrition]

Thank you so much !!!

[@abduqobilmamajonov4916]

Menga tushuntira olasizmi

[@charlespc8855]

How is a the middle gene when b also changes and stays the same? I'm sorry but confused at this video. Please can someone answer for me.

[@dkumari405]

Bc a is the only gene that changes while c and b remain the same. the gene that is in the middle--- has to change while the other two genes remain the same

[@chiamakaokafor6374]

thank you!!!!!!

[@moas225]

Do you still use the same approach if you only have two data of SCOs(SCO1,SCO2) instead of a pair of SCOs(SCO1~4)?

[@mpers]

you can probably extrapolate the missing data

[@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?

[@mattbekhterev1249]

We know that "observed" DCO are 4 + 2 = 6 How do you calculate "expected" DCO? For DCO to happen both SCO 1 and SCO 2 must happen (Product Rule). Therefore we know that (46+38+4+2) out of 1000 (0.09) SCO-BA happened x (71+63+4+2) out of 1000 (0.14) SCO-AC happened. So the probability of DCO == (0.09)(0.14) = 0.0126

[@tahiyyamoosa5029]

very confusing compared to last video concepts changed

[@abdellrahmannour9977]

Thank you so much !!