3pointtestcross

  Рет қаралды 68,722

Dave Johnson

Dave Johnson

Күн бұрын

Пікірлер: 226
@tannerhickman2325
@tannerhickman2325 2 жыл бұрын
This gentleman is now retired, congratulations, and thank you for the excellent explanation.
@AquaticLogic
@AquaticLogic 8 жыл бұрын
This video beautifully explains one week of lectures I had in genetics (and didnt understand) in 30 minutes. Thank you sir for your time!
@daajjj
@daajjj 8 жыл бұрын
+Funksolid You're welcome.
@daajjj
@daajjj 5 жыл бұрын
Glad to help.
@michaelwise507
@michaelwise507 8 жыл бұрын
I would give anything to have you as my Genetics professor. Well done! Thank you, thank you, thank you!
@fujimori17
@fujimori17 6 жыл бұрын
people like you on youtube make me rethink paying thousands of dollars for classes at a 4 year University. You made something I had no grasp of extremely understandable in a fraction of the time I've spent on our course textbook software and online lecture tools. Thank you so much.
@daajjj
@daajjj 6 жыл бұрын
This is a resource for my class at the 4-year university where I teach: Samford University, Birmingham AL. We'd be glad to have you in our Biology department. 😁
@hannahlarkin7287
@hannahlarkin7287 4 жыл бұрын
I almost cried with relief after you explained such a complicated topic so simply! Thanks sooooooo much!
@anticlock620
@anticlock620 4 жыл бұрын
My head was jammed before watching this. Calmed my mind and watched the whole video. Everything is clear. Now I am able to solve more problems like these. Thanks Professor.
@eddiehoang2529
@eddiehoang2529 5 жыл бұрын
omg. i wish you were my professor. I sat in the lecture for 2 hours, but had no idea what my professor was talking about. But i got the concept less than one minute after watching your video. Thank you so much
@ushanav6601
@ushanav6601 9 жыл бұрын
Much appreciated! You've taught me more than my lecturer and tutor in these 32 minutes than they have in the past 4 weeks. Thumbs up!! Hope you have a wonderful day Sir :)
@daajjj
@daajjj 6 жыл бұрын
Thanks.
@lilakaye1505
@lilakaye1505 5 жыл бұрын
The BEST video on the topic I've found! You make it so easy. I've already shared with classmates.
@ashdash3681
@ashdash3681 6 жыл бұрын
Please never stop teaching, you're a life saver!
@TheStaniG
@TheStaniG 4 жыл бұрын
You just helped me understand and finish an assignment that needed a 3 point test cross and the ensuing calculations. THANK YOU!
@christurner1791
@christurner1791 7 жыл бұрын
You have no idea how much help you've given, great teaching - you're a credit to the profession.
@ITubeYouK
@ITubeYouK 6 жыл бұрын
You sir are a prophet of chemistry and I have been enlightened.
@miixtapemodz
@miixtapemodz 2 жыл бұрын
Studying for genetics final - had to come watch this video again. Truly great explanation.
@energeia
@energeia Жыл бұрын
One of the best teachers ever!!! Thank you so much!!!
@massallastellasamuel5339
@massallastellasamuel5339 9 жыл бұрын
Great job sir! ✔️✔️✔️ You did an awesome job in explaining 💯💯💯💯
@malavikaganesh9970
@malavikaganesh9970 4 жыл бұрын
Taught me something I've been trying to understand for almost 2 -3 years!! Lovely grandpa!
@winterscoming616
@winterscoming616 7 жыл бұрын
NO WORDS TO EXPLAIN HOW GREAT YOUR EXPLANATION IS. SIMPLY AMAZING! THANK YOUUUUUUUU!
@daajjj
@daajjj 7 жыл бұрын
Thanks. Glad it helped.
@johndrysdale9119
@johndrysdale9119 Жыл бұрын
I needed this king for my midterm tomorrow. Thank you so much for the straight explanation!
@graded5328
@graded5328 3 жыл бұрын
Thanks, Professor Dr. David A. Johnson, You have explained so very beautifully that I am in awe of understanding this concept which eluded me throughout the week. May God bless you and keep you safe in these trying times.
@TherealJKparty
@TherealJKparty 7 жыл бұрын
Sir, you are brilliant in all aspects of teaching. Your lessons have truly left a remarkable impact on my life, and with that, I hope to pass on your teachings to those around me in an effort to spread knowledge and positivity. I hope all goes well for you in life and I hope that you truly understand the significance of education that you helped spread across the internet. Thank you.
@DrBillWyatt
@DrBillWyatt 7 жыл бұрын
I have searched for more than 50 videos on this topic because I am an absolute beginner. YOUR VIDEO IS THE BEST !!! and really helped me. Thanks for such a detailed explanation. Loved it !! Thanks a lot
@daajjj
@daajjj 7 жыл бұрын
You're welcome. Thanks for your kind words.
@Abigail-hu5wf
@Abigail-hu5wf 6 жыл бұрын
This is legitimately one of the BEST explanations of this I've seen! Thanks!
@Hawkman6788
@Hawkman6788 6 жыл бұрын
You, sir, have a talent! You have put knowledge directly into my brain. I thank you!
@afrikahnprincess
@afrikahnprincess 6 жыл бұрын
This is a great explanation for a complicated problem! Great job with this.
@emailnotavailable
@emailnotavailable 7 жыл бұрын
After hours of pure desperation, it only took me 32.28 mins to get it. Thank you sooo much!
@ReleasetheKracko
@ReleasetheKracko 7 жыл бұрын
Honestly, thank you so much for posting this video. My professor did not explain this well at all, and you made it seem so simple! Here's to passing my Genetics exam tomorrow!
@janrags
@janrags 6 жыл бұрын
You did such a great job explaining this. I have been scouring the internet for a video as good as this one and I am so happy I finally found it. You are an amazing teacher, thank you so much.
@GoodKnight5252
@GoodKnight5252 7 жыл бұрын
I downloaded the video just incase it got taken off line! Best explanation ever!!!
@joemiller8986
@joemiller8986 5 жыл бұрын
This is the greatest video on three point test cross.
@utkarsh5293
@utkarsh5293 5 жыл бұрын
Wow..Amazing teaching skill. Bestt Prof. of genetics and Molecular biology... Thank you sir for Clearing this concept.
@nathanwarner9925
@nathanwarner9925 5 жыл бұрын
Thank you so so very much for making this video, I have been struggling with this concept for two semesters and yours is the only video on KZbin that laid it out so plainly and without confusion! Keep up the great educating!
@24jlockhart
@24jlockhart 9 жыл бұрын
Thanks to you I feel much more confident about my upcoming test!
@rosemaryj2408
@rosemaryj2408 5 жыл бұрын
Perfect and clear-cut explanation ..heartfelt gratitude sir!
@adi1096
@adi1096 7 жыл бұрын
THANK YOU so much sir! For some reason this concept was very difficult for me to understand and I tried to watch many videos that just didn't help at all, however, this one was so clear, easy to follow, but still very detailed. I appreciate it! You are a great teacher! In just 30 minutes you touched on basically every important thing related to three-point test crosses. Wish you were my professor!
@devikagautam4651
@devikagautam4651 7 жыл бұрын
Thank you so much . I always had problem solving this kind of questions but your lecture is so clear that it overcomes my fear.
@laurenurban5636
@laurenurban5636 5 жыл бұрын
Thank you so much! My professor went over it once in class and never again so it's going through and finding things like this to help teach myself that got me through and made me successful in the class.
@pritombiswas5896
@pritombiswas5896 6 жыл бұрын
This video helped me to understand the concept of three point test cross and solve problems from CSIR NET question papers. Thank you sir for describing it so easily. Looking forward for more videos.
@camille8443
@camille8443 6 жыл бұрын
LOVE YOU SIR, you explain it so well!!! I'm french, and the frenchie girl will pass her exams thanks to you! Have a good day Monsieur!
@mahnoorali4927
@mahnoorali4927 8 жыл бұрын
final is tomorrow. you were so clear and made it look so simple. thank you!!! God bless you !
@kakashirjdgrayman
@kakashirjdgrayman 9 жыл бұрын
Absolutely terrific explanation! Thank you so much!
@thomasbrams2721
@thomasbrams2721 6 жыл бұрын
Good teachers are so hard to find these days.. But sure this is one of them. Really good explaining!! Thanks
@gail9405
@gail9405 6 жыл бұрын
Thank you so much !!! I have my genetic exam tomorrow and you made my life so much easier ! 🙌🏻
@Lily-fg1je
@Lily-fg1je 6 жыл бұрын
This is just so helpful. You saved my midterm. Thank you so much sir!
@chadthechad1
@chadthechad1 7 жыл бұрын
Seems like you took your time! sometimes my professor is too fast in explaining topics this one explained it on a deeper and easy to understand level. Thank you for helping me understand this better.
@sushmitasingh3326
@sushmitasingh3326 5 жыл бұрын
This was soo beautifully explained by you sir !! Thank you , you cleared my concepts . Teachers like you are rare !!! Keep uploading more videos :)
@thefenerbahcesk4156
@thefenerbahcesk4156 3 жыл бұрын
I must have watched this video a million times when I was taking genetics. Now I'm rewatching it as a grad student working in a yeast lab.
@cheesymalkist5386
@cheesymalkist5386 6 жыл бұрын
thank you for making this video! I was struggling with my assignment and looking for some explanation videos and I come to this video and this is really help me, finally I can solve the problem in my assignment.
@Vwgti2011
@Vwgti2011 7 жыл бұрын
What a great video! I have been struggling with this for a while, but you have made it super clear, thank you so much
@daajjj
@daajjj 7 жыл бұрын
I'm glad.
@prasannadevarakonda5579
@prasannadevarakonda5579 4 жыл бұрын
It cleared so many doubts, I just can't thank you enough! Thank you!!!😊😊
@ruuuth123
@ruuuth123 9 жыл бұрын
Thank you so much! Very thorough explanation!!!
@bloui1033
@bloui1033 9 жыл бұрын
Thanks for such a clear explanation!
@nagaraju61407
@nagaraju61407 6 жыл бұрын
this is really perfect explanation of three point test cross, thank you sir
@PhotonCrasher
@PhotonCrasher 6 жыл бұрын
My god, the man fixed those percentage errors last minute! Props to those catches! Great video! (For any of those confused about what I'm referring to: he wrote 45/1000 = 4.5%. In fact it equals 0.045%.)
@daajjj
@daajjj 6 жыл бұрын
A little basic math: 45/1000 IS 4.5% (This is 4.5/100 which is 4.5%!!! Per cent is parts per 100. 4.5% = 0.045)
@PhotonCrasher
@PhotonCrasher 6 жыл бұрын
Ah my bad! You are indeed correct! This video helped me for my Biology Final, thanks again!
@ymhr496
@ymhr496 8 жыл бұрын
Wonderful explanation. Thanks for taking the time to make this video.
@KomalKumari-uw6rb
@KomalKumari-uw6rb 4 жыл бұрын
Great explaination Sir We want more videos like this Love from india west bengal😊
@altayetiruneh7256
@altayetiruneh7256 9 жыл бұрын
nice!! your video enable me to jump to the next chapter, wish you bear with us.
@Dreuh2001
@Dreuh2001 8 жыл бұрын
Thx daajj. You did a great job explaining this process and its implications.
@star0dust8
@star0dust8 5 жыл бұрын
thank you soooo much! I appreciate your generosity in recording and posting this video
@misbahmumtazchoudrey7734
@misbahmumtazchoudrey7734 6 жыл бұрын
u r great sir.. thank God for having such person in this world..😊
@lalawoohooo
@lalawoohooo 2 жыл бұрын
The best video I found on this topic!!
@biocapsuleneet3689
@biocapsuleneet3689 4 жыл бұрын
Beautifully elucidated No ambiguity Due regards. Will teach my students 3 point test cross.
@adamart3982
@adamart3982 Жыл бұрын
Wow! Thank you very much sir! You are a great lecturer! Thank you!
@RockOnx94
@RockOnx94 8 жыл бұрын
This was great and thorough, I was so lost until I saw this video, thanks!
@officialswetamishra
@officialswetamishra 7 жыл бұрын
I have a test tomorrow. And this just made it easier.
@katelyndiaz2940
@katelyndiaz2940 6 жыл бұрын
THANK YOU SO MUCH FOR TAKING THE TIME TO EXPLAIN THIS
@EIsuruPriyaranga
@EIsuruPriyaranga 7 жыл бұрын
Wow, Thank you so much ! Oh, I wish that my lecturer at least may learn from you regarding how to teach well and how to guide properly without wasting time!
@azanda02
@azanda02 6 жыл бұрын
You're simply the best!!! Thanks a million!
@sevenoctobers7471
@sevenoctobers7471 4 жыл бұрын
You explained it brilliantly. Thank you!!
@anon5450
@anon5450 5 жыл бұрын
Thank you so much, I pray for you health and happiness!
@kindlygentleman
@kindlygentleman 5 жыл бұрын
You are an amazing teacher. Thanks so much!
@kashafseducationalsite363
@kashafseducationalsite363 4 жыл бұрын
great explanation.. and really it help me.. a lot... thank u.. from Pakistan
@chocowlet
@chocowlet 7 жыл бұрын
bless you! I feel far more confident, i was way off with what I was trying to calculate before. Love from NZ
@itsci
@itsci 8 жыл бұрын
You're a lifesaver! I understand it soo much better now.
@daajjj
@daajjj 8 жыл бұрын
+Ci M I'm glad.
@jonathantrottier1582
@jonathantrottier1582 8 жыл бұрын
Thank you so much you helped me understand this concept so much. All the other videos did not explain the why you did thank you.
@naginakhan1ify
@naginakhan1ify 6 жыл бұрын
I was struggling on this topic. Thank you so much sir
@sagrikaarora2580
@sagrikaarora2580 7 жыл бұрын
Great explanation sir...hats off...
@nehasingh-hk6my
@nehasingh-hk6my 7 жыл бұрын
You are a LIFE SAVER .THANK YOU!!!!!
@akhtarshaikh8894
@akhtarshaikh8894 7 жыл бұрын
l was disliked three point test cross but now after seen this video. I really like.Thank you sir!!!
@LifeAccording2Kay
@LifeAccording2Kay 8 жыл бұрын
wish my professor explained this in such plain english like this....Thank you!!!!
@daajjj
@daajjj 8 жыл бұрын
+QueenChunky31 Thanks!
@hafijulkhanbiology5928
@hafijulkhanbiology5928 5 жыл бұрын
Thank you very much sir... You are too good to explain... Thanks a lot...
@steinway325
@steinway325 4 жыл бұрын
this man is amazing. thank you so much Dave! so much better than my genetics prof :(
@juliecuevas8657
@juliecuevas8657 7 жыл бұрын
Thank you so much sir ! Great work ! U saved my bio grade 🙂
@halbassam1946
@halbassam1946 8 жыл бұрын
Thank you so much! i wish my professor explain things like you!!
@daajjj
@daajjj 8 жыл бұрын
+Hassah Olbassam Thanks.
@daajjj
@daajjj 8 жыл бұрын
+Hassah Olbassam Thanks!
@brettalundquist7364
@brettalundquist7364 2 жыл бұрын
thank you so much for making this video! It is incredibly helpful
@jamesjames-cy7bp
@jamesjames-cy7bp 7 жыл бұрын
Thank you very very much for your help, your explanations a very clear !!!
@celadona5084
@celadona5084 8 жыл бұрын
Thank you so much. This was incredibly helpful, you explained it very well.
@aviadshiber6232
@aviadshiber6232 4 жыл бұрын
what a king... thank you!!! amazing explanation
@ktcoding7
@ktcoding7 6 жыл бұрын
Thankyou for this wonderful lecture.
@kwanelesabela1732
@kwanelesabela1732 5 жыл бұрын
Finally I got this...THNKX to U Mr ..
@akritino7437
@akritino7437 9 жыл бұрын
I loved your explanation ! Worth listening to your video ! Thank you :D you have taught really well =]
@aminyare4912
@aminyare4912 7 жыл бұрын
Thank you sir,you are amazing teacher.
@yam-vv6re
@yam-vv6re 7 жыл бұрын
what a lifesaver you are! thanks!
@VictorMartinez-by6fk
@VictorMartinez-by6fk 7 жыл бұрын
I love this guy, I wish he was my instructor.
@TheEcolust
@TheEcolust 5 жыл бұрын
Thank you Sir. You explained it really good and cleared all my doubts. :)
@izad_ijaz
@izad_ijaz 4 жыл бұрын
Thank you Sir. It explained me a lot what I had confusions
@porkers101
@porkers101 5 жыл бұрын
Thank you so much for your video! This makes sense now! One question: how do we determine gene order if no double crossover event occurs?
@daajjj
@daajjj 5 жыл бұрын
All you have to do is determine what the double crossover would be (if they had occurred). You will have two possible arrangements with 0 individuals, so those are the double crossover. If someone listed for you all of the offspring of a 3-pt. test cross and there were no double crossover, then you just figure out which two classes of individual are missing. They are the double crossover. Does that make sense?
@ak5504
@ak5504 6 жыл бұрын
Holy F*ck. This was amazing. I understand 3 point test crosses now.
@cam.cooks.preeeemium
@cam.cooks.preeeemium 6 жыл бұрын
Best video ever very informative
@farhanaahmed7163
@farhanaahmed7163 6 жыл бұрын
Finally, I understand! Thank you so much!!
Three-point mapping and gene order
15:00
Joseph Ross
Рет қаралды 145 М.
Who’s the Real Dad Doll Squid? Can You Guess in 60 Seconds? | Roblox 3D
00:34
Smart Sigma Kid #funny #sigma
00:14
CRAZY GREAPA
Рет қаралды 77 МЛН
Não sabe esconder Comida
00:20
DUDU e CAROL
Рет қаралды 49 МЛН
Why everyone stopped reading.
11:04
Jared Henderson
Рет қаралды 717 М.
Three-Point Testcross Example | Genetics
17:43
DrWD40
Рет қаралды 12 М.
mappingorderedtetrad
8:53
Dave Johnson
Рет қаралды 26 М.
Genetic Recombination, Linked Genes, and Crossing Over
13:23
PremedHQ Science Academy
Рет қаралды 95 М.
Genetics Tutorial Determining Gene Order for 3 point linkage mapping
12:25
How to DESTROY Anyone in an Argument
25:27
Unsolicited advice
Рет қаралды 1,2 МЛН
Three Point Cross - Linkage Mapping!!
25:23
Now I Know
Рет қаралды 10 М.
Gene mapping | Biomolecules | MCAT | Khan Academy
13:20
khanacademymedicine
Рет қаралды 451 М.
Who’s the Real Dad Doll Squid? Can You Guess in 60 Seconds? | Roblox 3D
00:34