Dihybrid and Two-Trait Crosses

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  • Опубліковано 16 чер 2024
  • This video will show how to set up and solve everyone's favorite 16 square Punnett square. Example solves a two trait (two factor) test cross which can then be useful for solving a dihybrid cross on our handout here: www.amoebasisters.com/handouts... This video uses vocabulary that was previously defined in the Amoeba Sisters Monohybrid Crosses video.
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КОМЕНТАРІ • 626

  • @AmoebaSisters
    @AmoebaSisters  6 років тому +310

    Card Note: At 4:50, we made a card edit that this example is a "test cross" two-trait cross as to be a true dihybrid cross, both parents should be heterozygotes. However, *the steps to solve two-trait crosses are the same* whether the two-trait cross is is a true dihybrid cross (meaning 2 heterozygote parents). See our handout for a true dihybrid cross with two heterozygous parents: www.amoebasisters.com/handouts.html We appreciate an email we received about this topic- thank you! :D If we redo this older video, we will make a point to specify the differences.

    • @squareball7017
      @squareball7017 4 роки тому +1

      I dont quite understand 5:50 where all letters in the side are in lowercase. Could you please elaborate more on the idea? And if so, are there cases where there are uppercase and lowercase letters in the side?
      Because in a 2x2 punnett square, the sides' are usually different, for instance an 'S' and 's' combo, so why doesn't it apply in a 4x4 or more?

    • @judecaruso434
      @judecaruso434 4 роки тому +6

      what

    • @miracaaahalane
      @miracaaahalane 3 роки тому +1

      :D

    • @leawilkinson6792
      @leawilkinson6792 2 роки тому

      so do dihybrid crosses provide support for dependent inheritance?

  • @lauragordon6414
    @lauragordon6414 4 роки тому +889

    When will everyone else realize the old saying? "Explain it to me as if I were a child!" Thank you, Amoeba Sisters!! :)

  • @abbylex1761
    @abbylex1761 4 роки тому +1535

    how to survive quarantined biology: amoeba sisters and crash course

  • @aidan-ib7qk
    @aidan-ib7qk 5 років тому +951

    damn bruh we finna pass this quiz

  • @chloes.editing6492
    @chloes.editing6492 4 роки тому +213

    THE FOIL METHOD HAS SAVED MY BIO GRADE THANK YOU THANK YOU THANK YOU

  • @Fellinthevoidd
    @Fellinthevoidd 4 роки тому +3471

    Who else is here cause your teacher doesn’t know how to teach 🤭✋

  • @ezraagi392
    @ezraagi392 3 місяці тому +15

    You explained this better in 8 minutes than my biology teacher in 50 minutes. Thanks a lot!❤

  • @nadiasotelo6045
    @nadiasotelo6045 8 років тому +202

    I love the amoeba sisters! Everything is explained so simply and quickly! I feel prepared for my biology test now! :)

    • @reginadoyle3770
      @reginadoyle3770 2 роки тому +12

      Were u prepared for that biology test 5 years ago?

    • @scoutmaster6490
      @scoutmaster6490 2 роки тому +4

      @@reginadoyle3770 Here for a biology midterm tomorrow, I'll let u know how I did.

    • @ashleytimoh120
      @ashleytimoh120 2 роки тому

      @@reginadoyle3770 LMAO

    • @lunarmoon3493
      @lunarmoon3493 2 роки тому

      How’d u do on ur biology test? Loll

    • @valentinainciarte6677
      @valentinainciarte6677 3 місяці тому

      @@scoutmaster6490how did it go?

  • @mistysmith8469
    @mistysmith8469 8 років тому +188

    I have been watching these videos as a refresher for part of studying for my state exam for teaching science. Thank you guys.

    • @AmoebaSisters
      @AmoebaSisters  8 років тому +34

      +Misty Smith So glad to be a part of your studying---wishing you a wonderful career as a science educator!

    • @loficorner4628
      @loficorner4628 8 років тому +8

      Thanks for carrying me through Bio, I love you guys.

    • @daveyport14
      @daveyport14 2 роки тому +1

      Same! Doing that right now for secondary biology in NM!

  • @supernaturalslater
    @supernaturalslater 5 років тому +94

    when you understand a full concept in an 8 minute video instead of an hour long lecture

  • @maribelruiz9683
    @maribelruiz9683 7 років тому +128

    Omg your video was so much easier to understand with cats and sinks than all the other nerdy scientific videos I tried, thanks so much!

  • @LB-li3ex
    @LB-li3ex 9 років тому +101

    I am taking bio this year, and we watch Amoeba Sisters videos all the time! They are so funny and so informative. Thank you both so much, I know a lot of hard work must go into making these. Just know that your hard work really helps people!

  • @crowteeth7773
    @crowteeth7773 7 місяців тому +4

    MY COLLEGE TEACHER DIRECTED MY CLASS TO THIS VIDEO. AMOEBA SISTERS FOREVER 💪🏻🙏🏻

  • @ToriLillytheauthor
    @ToriLillytheauthor 8 років тому +3

    I can't explain how much I love these videos. I struggle with science but it's so much easier to understand with cute videos and handouts.

  • @AyeshaKhan-gp9on
    @AyeshaKhan-gp9on 7 років тому +10

    The FOIL method you explained for the gametes? Now I'm never ever messing up my dihybrid crosses!! Seriously, you guys are the best!!

  • @chloee_xxx
    @chloee_xxx Рік тому +22

    I loved this soooo much!! You managed to make it informative and understandable while still making the process enjoyable. Thank you sooo much!

  • @leonoquil368
    @leonoquil368 3 роки тому +26

    You're videos are saving my scores in Biology! Hope you still make videos!
    Can you make a video about the Mendel's Laws of Inheritance? Thank you!

  • @spacedoggo1127
    @spacedoggo1127 7 років тому +408

    My teacher uses these videos in class.

    • @kevinr.7182
      @kevinr.7182 7 років тому +3

      Space Doggo same tho

    • @thebrainwasher2151
      @thebrainwasher2151 5 років тому +14

      I think its fine if they do that as an introduction, but not base their whole lesson around it

    • @arshali8506
      @arshali8506 5 років тому

      same

    • @Ambition-DReAMz_
      @Ambition-DReAMz_ 5 років тому +1

      Same

    • @liia625
      @liia625 4 роки тому +2

      The Naruto dog reminds me of Squanchy. Thank me ltr...

  • @zaiaisastay9421
    @zaiaisastay9421 2 роки тому +2

    Thank you! I am beyond grateful. This has helped me a lot. I was confused about dihybrid crossing before watching, and now I feel enlightened. Thanks!

  • @parkerlemmon754
    @parkerlemmon754 3 місяці тому +2

    dude i hate these videos so much but they are so good they help me so much thank you

  • @briannadijonay
    @briannadijonay 6 років тому +14

    Thank you!!! I got a 90 on my monohybrid/dihybrid test.... great video :)

  • @BitchSnacks1
    @BitchSnacks1 6 років тому +1

    Made a dry topic relatable and engaging so that I actually wanted to follow. Refreshing, relatable, uplifting, and informative--thanks!!

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    @vanessad8290 5 років тому

    I love your page, and have learned so much for Bio. The humor, jazzy music and simple detail are what I love most.

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    @simplysports6200 Рік тому +3

    Greatest channel of all time. You clutch up for my tests

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    @wyattframe3101 7 років тому +8

    My 8th grade science teacher is showing us these videos in class, and they are actually very helpful! While having fun animations and concepts, they are quite dense with information. Keep it up!

  • @yoitslourdes
    @yoitslourdes 8 років тому +5

    Thank you so much! This really helped me a lot with my studying! I am taking a General Biology class in my college and this was confusing to me. Now i feel more confident in doing this on my exam next week! :D

  • @alyssajunee
    @alyssajunee 7 років тому +4

    I'm taking an online course biology, right now, we're learning about Punnett Squares and Dihybrids and things like that. This video helped me understand it sooooo much better than the information that I was reading. It never explained exactly what gametes were and to freaking foil the letters. Plus it was using cats as examples and I love cats! This was awesome! :D (ps, my cat lovessss our sink also!)

  • @MangoWifi831
    @MangoWifi831 6 місяців тому +1

    omg yay it finally made sense! I literally just skim through my textbook and then actually learn it by watching your videos. They are so cute and funny, and so so easy to understand! Tysm, you're a lifesaver!

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    @dianaalbanese9103 2 місяці тому +2

    The whole cat skit made me laugh really hard

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    @belle_mochi1897 2 роки тому +2

    Thank you so much for creating this video all my worries and questions are finally gone because of this video. 💜

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    @nickname45i Рік тому +9

    This helped me a lot with my homework. Thank you.

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    @alynabro8244 6 років тому +3

    This video was really good helpful thank you so much!!! I was having trouble on my genetics packet and this just explained it perfectly and also in a fun way so I was able to pay attention🤗💙

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    @reg456n 8 років тому +1

    Your videos on genetics inheritance really helped me in my exams (MMD!!!) thank you so much.

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    @user-ee3iw1oi6g Рік тому +1

    I don't know how people passed biology before Amoeba Sisters existed 🙌🏻

  • @kolimo81096
    @kolimo81096 7 років тому +19

    Thank you, my teacher didnt have time to go over dihybrid crossess, so when it same to my homework, I came to you, and you really helped me =)

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    • @AmoebaSisters
      @AmoebaSisters  7 років тому +14

      Thank you for the encouragement!! It helps keep us motivated!

    • @faeryb0mb517
      @faeryb0mb517 7 років тому +2

      moo looks very smart. ((i know from having smart cats. one of them can almost use a doorknob. not joking))

  • @ClarissaRose
    @ClarissaRose 5 років тому

    Thank you so much for making this video!! It was very helpful in clarifying how to do these!

  • @folayinkaolaofe6646
    @folayinkaolaofe6646 4 роки тому +2

    final year of college and i'm here, never been more grateful haha

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    @czarbuscus1475 Рік тому +6

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    @andrewnathan2903 5 років тому +1

    This basically answered my questions! Was super confused by this! Thank you!!

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    @dustin6137 9 років тому +13

    Can u please make more science videos! This helps with my home work and my sciende class. Thanks

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    @katedufall6745 7 років тому +1

    I absolutely positively love that you use cats as the example, it makes it so simple! my cat enjoys winter here in Australia because she can go outside and play in the puddles, with all the cows looking on. its hilarious.my cat also enjoys sleeping in the bathroom sink at night.

  • @dldudasik
    @dldudasik 7 років тому +25

    I'm a teacher - a don't really understand science teacher... this helped me so much, and I plan to show it to my student tomorrow. Thank you - and say hi to Moo

    • @don2killu
      @don2killu 6 років тому +35

      u shouldnt be a teacher

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      @YonikMalik 6 років тому

      don2killu why Mr. Cringe?

    • @kush_altaccount663
      @kush_altaccount663 5 років тому +13

      @@YonikMalik because it's such simple concepts.... Really shouldn't be a science teacher if you can't even understand hybridization without looking up a UA-cam video

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      @hanahaki4025 5 років тому +1

      noice

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    @rossannsupena5011 6 років тому

    Thanks for this vid @Amoeba Sisters it made everything easier and lighter for young minds!

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    @DrNavarrio 4 роки тому +60

    i went to catsandsinks and now the fbi wants to know my location...

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    @wisdombanda8869 Рік тому

    Amoeba sister's... you are the best! I wish you taught every subject I was taking

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    @liia625 4 роки тому

    Thx for making Bio much more interesting and easier to understand!

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    @Ginatron 6 років тому +1

    Literally saving my life. Thank you!

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    @TC-lk5hu 3 роки тому

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    @aneeqalabeeb7013 8 років тому

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    @jonstevens2346 9 років тому +56

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    @griffingaming3279 7 років тому +1

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    @Dmorales777 4 роки тому

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    @happyhappycooking2788 7 років тому +2

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    @vyphan9167 8 років тому +1

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  • @farmatt6737
    @farmatt6737 4 роки тому +3

    According to the pet food company Candidae, cats enjoy the cold, hard basin of a sink because it helps them cool off. If it's warm outside or if you have the heater on inside, your pet may see your sink as a nice respite from the heat.

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    @youtube.obsessed8728 7 років тому +1

    This helped me so much! THANK YOU GUYS

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    @bookfanatic8329 7 років тому +3

    Thank you very much for making this video. I was struggling with this until now.

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    @maceldivina5919 7 років тому

    Thank you 😄. It helps me alot. I am having this being shy to my seatmate because of my wrong answers regarding this and now i understand it clearly. thanks for this 😘❤

  • @yadanar_min8
    @yadanar_min8 6 місяців тому

    Thank you, Amoeba Sister. It really helped me.

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    @bharathsri6089 9 років тому +4

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    • @AmoebaSisters
      @AmoebaSisters  9 років тому +1

      Bharath Sri Thank you so much, Bharath! :D

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    @akiangel1864 3 роки тому

    Mannn we haven't even tackled this lesson but we have to answer the tests already 😭 thankk youu this is a blessing ✨

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    @devonmcintyre9476 3 роки тому +1

    This has literally been my Biology haven

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    I literally have exams in 9 hours. Your channels vids have been helping me pass biology😭

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    @safaabukhamsin8465 6 років тому

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    @Vanessa-qw1tf 3 роки тому

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  • @smm3na
    @smm3na 6 років тому +1

    That 'cat loving sink' thing and parents of moo (Mr.&Mrs.mooington) was ridiculous !!! 😂❤😻LOL

  • @lukajeknic806
    @lukajeknic806 5 років тому

    This is very well put together, well done.

  • @moniquereed3294
    @moniquereed3294 7 років тому +1

    By definition, a dihybrid cross is between two individuals both heterozygous for two traits and produces the 9:3:3:1 ratio. In this example, one parent is homozygous for both traits. The example here is essentially a backcross, the crossing of a hybrid individual with one of its homozygous parents. But it is still a good example of how to do a two-trait cross.

  • @maka4164
    @maka4164 8 років тому

    Thank you so much, this helped me for my test tomorrow :)

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    @givemeaname2301 4 роки тому

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    @ellie_ackerman4296 3 роки тому

    The amoeba sisters are the answer to all my problems.

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    @Locomewmew Рік тому

    You guys are amazing! Thank you for your help. I understand better than I do with in my class. LOL

  • @emilymarierobertson
    @emilymarierobertson 6 місяців тому

    I’ve been trying to figure out how to set up the squares for an hour, and just because of the foil method I got it in 5 minutes. Crazy

  • @LilJ4ever
    @LilJ4ever 6 років тому

    Wish I could like 10 more times for Moo. Great video!

  • @carolinemcdougall2543
    @carolinemcdougall2543 9 років тому +7

    Massive thankyou to you, I watched this video last night, the night before my exam. :/ and it came up. Chuffed to pieces, never thought i would be so happy to create a dihybrid punnet square. lol.

    • @AmoebaSisters
      @AmoebaSisters  9 років тому +2

      Caroline Mcdougall Thank you so much, Caroline! So glad to hear that :D

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    @Alqoro 2 роки тому +1

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    @TangentsAndTingles 4 роки тому +1

    I really love these videos, they help a lot in a situation that you are a visual auditory learner. I recommend these to anybody having problems in the classroom.

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    @willmcleod1915 7 років тому

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    ....THANKYOU!!

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    @vb-jg5qw 4 роки тому +19

    no one chose to be here

    • @insaniac4349
      @insaniac4349 Місяць тому

      in all honesty I did choose to be here because I never learned these but they're for homework, so now I'm up at 9 looking up amoeba sister dihybrid punnet squares 😭

    • @fatmahmojhanyadatu-dacula2220
      @fatmahmojhanyadatu-dacula2220 Місяць тому

      Its 5 30 in the morning and class starts at 6 but im still at home watching this😓

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    @lauracruz7835 4 роки тому

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    Thank you sisters! :P

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    @TheRatDoesArt 3 роки тому +2

    I love that Moo’s eyes are going to different directions.

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    @travisgarcia7705 3 роки тому +1

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    @elijahgastineau4432 4 роки тому +4

    What's up honors bio students

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    @gemgaming4042 4 роки тому +1

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    @courtneytheodorakrois7973 3 роки тому

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    @Lllukasko 7 місяців тому +1

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    @k0naOK 7 місяців тому

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    @iSmifflesHabbo 9 років тому +1

    Very helpful, thanks!

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    @jtcro3494 7 років тому

    Thanks a lot, my exam on this is tomorrow and I really understand it now👍🏼

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    @minttoast5249 3 роки тому +5

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  • @sofiar.4409
    @sofiar.4409 7 років тому +4

    My Biology class loves watching your videos. They are always so awesome. By the way I think my cat is HhSs because she LOVES the sink too.