Thank you so so much! I have an exam tomorrow and I had very little understanding on Punnett Squares. Out of all the video's I've seen, yours is by far the most clearest and helpful of them all. Thanks again for the help!!
i have a test on monday on this and i couldnt be more happy that you helped me because i had to wake up and realize that i need to ace that test to get my grades higher, and i am 100% sure that this will help me not just past bute ace the test i have on monday. you are very much thanked.
Wow, the teacher teach me this and I couldn´t understand it but you teach me this in a simple form and I undestand it at the first time that I watched the video. THANKSA MILLION!!!!!!!!!!!!!!!
You have no idea how much I appreciate this! Thankyou. I missed my whole lesson on this at school, so I was extremely confused on how to get the probability. But I am now succeeding with it!
Thanks, man. I've got a test tomorrow for by Biology involving Recessive and Dominant alleles, this has helped me revise the more advanced questions involving percentages and the Punnet square! You've earned a subscriber.
Got my GCSE's this week... Never understood this topic! Now i do! THANK YOU!!! I hope you read this comment, I want you to know you have helped me... And thousands more. :) thanks
Thank you so much, I have a horrible science teacher, and I got a 29% on my Quiz, and I have a test tomorrow, and this really helped me understand it, thank you.
I have watched tons of RU-vid videos and none of them helped me. Thanks man you are an amazing and simple, and now I understand because of you. You are my rock dude.
HIIII i was so confused about this lesson during my 9th grade of high school, and we had to tackle it again on the 12th grade of high school and I was so scared I might fail again, but after watching your tutorial and whilst following you solve the problem, I answered everything correctly. YOU ARE AWESOME THANK YOU SO MUCH!
You are awesome!! (Says after pausing to look up for the meaning of the other words, and slowly listening to what you say like for twenty minutes) just have to practice,but I know what it means now. Thank you a bunch🙏
BiologyMonk hey this video is helping me so much on Punnett squares tomorrow I have a test in science if they say in this is going to help me pass thank you so much for this video I hope you keep on making more awesome videos 😄😀
I did this shit in the 7th grade. Hard at first, but I finally got around to it. Thought I wouldn't need it from there. I was wrong, and it came back into play in Biology and Sex Ed. Didn't do so well on those tests. Ah, the good days. Where have they gone ?
thanks so much, my teacher doesnt even exaplain it that much, and doesnt answer any of the questions i asked her through email, but you explained the one part i was confused about
Thank you! School never teaches me anything, but this is actually allowing me to learn something for once! (it's actually Summer Break but I am already missing school...
Just a question : When the question says cross a heterozygous brown mouse with a blond mouse. Does that mean that the mean the genotype for the blond mouse with be bb and the genotype for the heterozygous mouse would be Bb? Thanks you so much!
Hetero = different = Bb. If you're crossing a heterozygous X... that means that X is dominant, so blonde would have to be recessive. To be recessive you have to have two recessive alleles. So... yes. Bb vs bb.
@@Fibonacc1 Thanks so much! I produced a whole bunch about a decade ago now... back to making more for different subjects. There are some other amazing ones out there (Bozeman Science, Crash Course) but I do what I can!
I'm confused about the difference in the Punnett Square from 1:00-1:06 the bottom left went from being a lower cased b to an upper cased B, even though the question states that both the parents have the Bb genotype. I wasn't sure if that was a typo on the parent allele, in the way that it is supposed to be set up, because wouldn't the change that is visualized have two upper case BB for the offspring in the bottom left?
In example no.1 for the punnet square, I assume you have plugged in the wrong genotype for BB, it's supposed to be a lowercase b in the second row. If I was mistaken please rectify and clarify my concern. Thank you
Thanks so much! What's funny is that my students will probably be scouring the internet for a decent video after they don't know what's happening in my class. Have a great year!
liked and subbed , because its going to help me to practice more and thank you for this amazing vid that u made , and i encourage u to keep making such vids , because its helps people such as me to understand and practice :)
I have a question that I am completely confused with. Would you be able to help me? In fruit flies, wing shape (wild type versus wrinkled) is inherited in a simple Mendelian fashion. Two fruit flies with wrinkled wings were bred to produce 31 offspring with wrinkled wings whereas 9 offspring had wild wings. What is the dominant genotype? What was the genotype of each parent? What is the likelihood that an offspring would be homozygous for wrinkled and homozygous for wild wings?
What is going on is that both parents have one trait and their children have something different. This means that both parents are carriers (they don't have, but can pass on) a trait to their children. This means that the "hidden" trait is recessive and the "shown" trait (in the parents) is dominant. Any time you have a 3:1 ratio (75% one trait, 25% another trait) you're probably looking at two parents that are heterozygous (genotype Hh, for example) being crossed. This is shown in the 31:9 result in offspring. To answer your questions, wrinkled wings are dominant. The genotype for each parent is Hh (they're heterozygous). If you filled out a Punnett square for this scenario both parents (on the outside of the Punnett square) would have the genotype Hh and one of the four boxes (indicating offspring) would have the genotype HH and one in four would have the genotype hh. The answer to the questions in the last sentence would be 25% and 25%.
I don't get why this guy is only at 8k subs. He helped me prepare for my exam. Please whoever visits this guy, leave a sub to him....He totally deserves it. If I pass my exam, its cuz of this guy
I'm confused. At 1:02, the Punnet Square has 2 capital B on the left side. Did I miss something? With 2 capital B on the left, doesn't that make 2 BB in the left column?
Hi I just want to let you know that you messed up in Example 1. On the bottom left isn't it supposed to be lower case b and not upper case B?. It messed up the whole problem
+FangArtKitty With Punnett squares you find a genotype (Gg for example). You can then interpret that to find a phenotype. If you have a genotype "Gg" or "GG" you'd "show" the dominant trait or phenotype. If you have a genotype "gg" you'd "show" the recessive trait or phenotype. Hopefully that clears things up a bit.
Hello I have assignment regarding solving Monohybrid inheritance and co dominance problems using the punnet squares and pictorial for example. Please can you explain more further on that for me??
thank you! but we have much much harder problems in school (switzerland) so it would help if you would do difficult examples too... but thanks anyways!!:) greetings from switzerland
I have some additional videos with more challenging concepts such as multiple alleles, multiple genes, and different types of dominance. Check them out!
Phenotypes would be things like an A blood type, brown hair, or wrinkled seeds (the characteristic itself). Genotypes would be Aa or AA (the alleles responsible for a characteristic).
