Man I just have one thing to say: you are absolutely killing it......................... Keep it all up as we all will see you hit that million mark soon.
I was revising this for hours and I did not learn anything but you showed this topic in 2 mins and for that I would like to say thank you rlly thank you
Gosh!! I cant believe it was actually that simple. Our professor made it look like a big deal. Thanks to you I was able to understand in just 2 minutes. You're a lifesaver!!
Hi, Please tell me that why orange colour is dominant while grey colour is recessive allele? How is it decided that which allele will dominate over other?
Thank you for your presentation! my question is: wouldn't the grey fur be the dominant allele because it's darker and the orange fur be the recessive allele because it's lighter?
thanks for explaining. but i also wanted to know how the genetic system knows which is the dominant allele? ie is there a separate record kept in the DNA itself?
Essentially, there are genetic markers on genes which determine expression, so a dominant allele actually has markers saying, "express me" and a recessive allele has a gene that says "express me if there are no dominant genes." Of course, it's much more complicated than this, but that is the general idea. Does that make sense?
Hi, Thank you so much ! Just one question : Concretely, how do you know which allele is dominant and which allele is recessive ? Thanks a lot for your answer. Tifany from France :)
Great question Tifany. The way to dertimine dominance is through selective combinations of alleles and looking at the outcome. This is essentially what Gregor Mendel did when he bred pea plants. Now, we have mapped genomes and can use computer modeling to determine inheritance patterns.
I found this video based on a search for videos that my students (college-level genetics students) have found and responded/reflected on. I was so happy that they reflected that THIS INFORMATION IS BAD!! It is incomplete. It is inaccurate. It is reductive. Most importantly - saying that one letter is capitalized and the other letter isn't capitalized DOESN'T MEAN ANYTHING WHEN YOU ARE SAYING THAT TO DNA MOLECULES! You cannot tell a molecule what to do! You cannot tell a molecule what it is! The presence/functionality of the molecules in a cell/organism determines how they impact phenotype. It doesn't matter what we call them, it matters what they do. This took me more than 2 minutes to respond to, but I hope it will help enlighten future learning.
This is an oddly charged and mostly inaccurate message from a college professor. I'm not saying anything to DNA molecules or alleles or nucleotides. I'm not encouraging students to try to 'tell a molecule' what they should be or do. Did you actually watch the video? I literally say it doesn't matter what letters you chose and that we only use them to represent the allele dominance, this very standard. Scientists and science educators use models and analogies all the time to help explain science. This is not a paper published in The Journal of Genetics and Genomics, it's a TH-cam video attempting to help high school students understand a difficult science concept they are likely to encounter. And judging by the views, comments, and likes, I would say it does that very well. Is genetics more complicated than this video? Absolutely. But learning something complicated takes steps of knowledge. If your students have reviews on this video, I would love to hear them. Sincerely, I would.
Does the dominant allele always show over the recessive? Like is there a chance that the recessive shows over the dominant? Because the dominant gene is preferred when the cell is producing protiens but that doesn't mean the recessive can't be picked right?
There are different types of gene expression where both alleles can be expressed, but generally speaking, if it is a dominant/recessive relationship, the dominant allele will always be expressed, even if it's problematic.
So I think I am understanding that the allele's are either dominant or recessive. In your example how did you know that orange was dominant over grey? What made it dominant? If one thing is normally always dominant is there a list of the dominant allele's? I am trying to figure out what make one allele either dominant or recessive and how we would just know or figure that out? I appreciate the time you take to make these video. They are great!
as i watched the video i got a little less confused but still confused ahah but as i read through the comments i understood it more. my teacher gave me a question and it’s “are traits controlled by dominant alleles more common than traits controlled by recessive alleles?” and i have to do a CER on it. i am now able to write it i’m no longer confused 😌✌️
You're welcome! Alleles are variations of a gene, this is the level at which dominance occurs. One allele is dominant over another. However, we usually don't use dominance when referring to genes, because one gene is not dominant over another gene.
If your asking about how you will know which trait is dominant or recessive on a school problem, it will be given in some form or another. Talk with your teacher about what they expect you to know for these types of problems. If you are asking how do scientists determine which trait is recessive and which is dominant, the short answer is, a lot of testing. Read up on Gregor Mendel if you're really interested in learning how dominance is determined. Let me know if you need me to explain further.
So why is the fur color yellow eventhough it is "BB"? Why can't the gray be expressed? Please reply to my question as soon as possible, and you have really great videos. Thanks!
In this case, yellow (orange) is the dominant phenotype, so if there are any upper case letters (dominant alleles, B), then the fur will be yellow. The only way to get gray in this case is to have two recessive alleles (lower case letters). Does that make sense?
Oh. So for example, in humans, if you get "F" (dominant)(green eyes) from mom and "F" (dominant) (blue eyes) from dad, what will your eye color be? Or which color will be expressed outside?
When we say an allele is dominant, it is always attached to the same trait. So if green eyes are the dominant allele, they will always be dominant. Blue will never be dominant over green. This is not how eye color actually works, just an example for illustration.
Dominant phenotypes will always be expressed if at least one dominant allele is present. Recessive will only be expressed if both alleles are recessive.
Ok so how do I have some dominant and some recursive and my brother vice versa as I have dimples but he doesn't dimples are dominant and I get from my dad but he doesn't but he can roll his tounge which is dominant but I can't please explain just curious
In the case of multiple alleles (3 or more) you have to know what the hierarchy of the alleles are, which can get pretty complicated. Let's look at a simple example using rabbit fur color. Imagine there are four possible fur colors for rabbits, brown (B), white (W), black(K), and red(R). I have noted there allele letter by each, you use different letters for each allele with multiple alleles. Lets say the hierarchy of dominance is such that B>W>K>R. So now we can look at a few examples and determine the phenotype or fur color. BK would be brown, as would BB, BW, and BR because B is the most dominant of all the alleles. If there is a B present, the fur color will be brown. KR would be black while KW or WK would be white. In this example, the only way to get a rabbit with red fur color is to have the genotype RR. I hope that made sense and answered your question. Let me know if you have more!
Your videos are great! Short, simple, and to the point! (Any chance you could fit the missing "e" in at the end of "recessive allel_s" so my students stop telling me about it when I ask them to watch this video? At least I know they are watching. Lol!)
Thanks Gretchen! I wish I was as sharp as your students at catching these spelling errors, unfortunately, I'm not 😞 and the software I use has no spell check 😭 I'll see if can add a note about the spelling errors.
I'm not sure what that statement means by "subdue." The dominant allele will be expressed in favor of the recessive allele, but the recessive allele can still be passed on to future generations. Perhaps that is what the statement is referring to.
Gimme a sec so that means 2 mins for one lesson, so we can flabbergastingly complete more than a half or half a chapter in a day, the whole syllabus in a couple of months, and the best part, vacations come closer!
For assignments: If you're given letters, the capital letter is the dominant allele. In science: Dominance is determined by careful study of genetic variations within a species. Does that help?
What happens when Ff is written as fF will it still be the same since the dominant will be the one that is being expressed and due to the fact that you said that order which it is written in doesn't matter in this case . would that still be correct even though the Dominant should be first followed by the recessive (Ff)
explained the whole semster in 2 minutes. love from israel!
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love how this explained more than both of my bio teachers could in a week - thank you! this topic was getting confusing
This is the most underrated channel.... this channel must have at least 5 million subs
Man I just have one thing to say: you are absolutely killing it......................... Keep it all up as we all will see you hit that million mark soon.
I was revising this for hours and I did not learn anything but you showed this topic in 2 mins and for that I would like to say thank you rlly thank you
You're welcome. I'm glad I could help.
man, I love how you can explain something that is super complicated and make it seem so easy
I've been reading the textbook for 2 days, trying to understand dominant vs recessive alelles.. TY!
I'm glad I could help, and I'm sorry you didn't find the video sooner.
Just got back from your Alleles and Genes video. I appreciate how you zoom out at the end showing the connection between everything written down.
he can explain a lesson under 3 mins while my teacher take 3 days to explain
I'm a simple man, but I do what I can.
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How random
ikrrr
I mean why is it not this easy in the book?
Thank you so much.
Yea, books can be confusing. Maybe I should write a book, haha!
2 Minute Classroom haha please do! I’d pay it and ignore the required textbook.
haha, good to know!
Can u please explain how do we know which ones are dominant and which are recessive?
Gosh!! I cant believe it was actually that simple. Our professor made it look like a big deal. Thanks to you I was able to understand in just 2 minutes. You're a lifesaver!!
woah, i was literally about to have a mental breakdown from homework because i couldn't understand it, this helped SO much!! thank you :))
I'm so glad you found it, I'm just sorry it took so long.
Thanks man you helped me with the most difficult subject and it’s easy u deserve at least 4 million subs
SO helpful thank you!! Ive been stuck on this all night and thought might as well try TH-cam. I got the concept in two minutes!
I'm sorry it took so long to understand it, glad I could help though.
I didn't understand before this!!! Thank you!!!
Glad I could help.
Thank you for this! But how is it determined wether which one will be the dominant or recessive? Will it be given already??
Yes it should be givin
Sir give more details information about dominate alelles and recessive allels please 🙏
Thanks 2 hours of explanition in 3 minutes
thank this was really helpful
Excellent and simple video.
I like this guy, gets to the point very quickly.
I'm in 7th grade and I want to be a pediatric anesthesiologist and I read you had to be good at Biology so here I am lol
Solid goal! And yes, you will study A LOT of biology.
Given the explanation in a interesting way in these boring days of online classes
Glad I could help
Mans just explained everything for me thanks
No problem 👍
Hi, Please tell me that why orange colour is dominant while grey colour is recessive allele? How is it decided that which allele will dominate over other?
Noice question
Was thinking same
Thank you for your presentation! my question is: wouldn't the grey fur be the dominant allele because it's darker and the orange fur be the recessive allele because it's lighter?
Thnx for this just want you to clarify my doubt on difference between traits and alleles!?
BTW love from india🇮🇳❤️
Alleles are the variations of a gene that determine the traits.
thanks for explaining. but i also wanted to know how the genetic system knows which is the dominant allele? ie is there a separate record kept in the DNA itself?
Essentially, there are genetic markers on genes which determine expression, so a dominant allele actually has markers saying, "express me" and a recessive allele has a gene that says "express me if there are no dominant genes." Of course, it's much more complicated than this, but that is the general idea.
Does that make sense?
Thanks!
how do you know which of the alles is the dominant one?
In the real world, through many tests. In school, it is usually given as part of the question.
tysm! i didnt understand this at all then i watched this vid and i am now a genius
You were always a genius, this video just helped you see that.
@@2MC thxx
This was made in 2017 and can explain this in 3 minutes, ether his smart or my teacher can’t teach fast lol love the video btw 😁💝
Glad it helped 😊
Hi,
Thank you so much !
Just one question : Concretely, how do you know which allele is dominant and which allele is recessive ?
Thanks a lot for your answer.
Tifany from France :)
Great question Tifany.
The way to dertimine dominance is through selective combinations of alleles and looking at the outcome. This is essentially what Gregor Mendel did when he bred pea plants.
Now, we have mapped genomes and can use computer modeling to determine inheritance patterns.
@@2MC Thanks u so much !! :)
You are a legend!
Not yet, but someday I hope to be.
My science teacher assigns us to watch ur vids
You must have a very smart science teacher! Be sure to thank them for me 😍
same here
the teacher obviously had to explain what these are when i was day dreaming. thank u so much cause i was kinda stressing until i watched your video
Happy to help 😊
finally i know what diferrence between genes and alles. thank you for the video 🎉🥰
24/12/23
I found this video based on a search for videos that my students (college-level genetics students) have found and responded/reflected on. I was so happy that they reflected that THIS INFORMATION IS BAD!! It is incomplete. It is inaccurate. It is reductive. Most importantly - saying that one letter is capitalized and the other letter isn't capitalized DOESN'T MEAN ANYTHING WHEN YOU ARE SAYING THAT TO DNA MOLECULES! You cannot tell a molecule what to do! You cannot tell a molecule what it is! The presence/functionality of the molecules in a cell/organism determines how they impact phenotype. It doesn't matter what we call them, it matters what they do. This took me more than 2 minutes to respond to, but I hope it will help enlighten future learning.
This is an oddly charged and mostly inaccurate message from a college professor.
I'm not saying anything to DNA molecules or alleles or nucleotides. I'm not encouraging students to try to 'tell a molecule' what they should be or do.
Did you actually watch the video? I literally say it doesn't matter what letters you chose and that we only use them to represent the allele dominance, this very standard. Scientists and science educators use models and analogies all the time to help explain science.
This is not a paper published in The Journal of Genetics and Genomics, it's a TH-cam video attempting to help high school students understand a difficult science concept they are likely to encounter. And judging by the views, comments, and likes, I would say it does that very well.
Is genetics more complicated than this video? Absolutely. But learning something complicated takes steps of knowledge.
If your students have reviews on this video, I would love to hear them. Sincerely, I would.
Does the dominant allele always show over the recessive? Like is there a chance that the recessive shows over the dominant? Because the dominant gene is preferred when the cell is producing protiens but that doesn't mean the recessive can't be picked right?
There are different types of gene expression where both alleles can be expressed, but generally speaking, if it is a dominant/recessive relationship, the dominant allele will always be expressed, even if it's problematic.
So I think I am understanding that the allele's are either dominant or recessive. In your example how did you know that orange was dominant over grey? What made it dominant? If one thing is normally always dominant is there a list of the dominant allele's? I am trying to figure out what make one allele either dominant or recessive and how we would just know or figure that out?
I appreciate the time you take to make these video. They are great!
you are best teacher becuose you are make time managment
and keeping my time
Why is one trait dominant over other??
I’m wondering that too
Bcz they are better
@@nightheist2191 pls don't if u don't know it
@@pulsatinggenius7851 tell me if you know it better
@@nightheist2191 no I don't that's why I asked the person who made this video not to u who is just saying anything
Sir I was asking that the defination of dominant and recessive
And did you get it?
hello i just have one question i’m doing some school work and it’s little h big H for hairless guiana pigs would that mean it would be hairless?
Finally, I understand! Thanks 😊
One question ❓ how do we know that one gene is dominant than other? , what determine the dominance of a gene ?
Ossum l have cleared my doubts regarding tis topic 😃😃
This video helpful for me
Excellent!
as i watched the video i got a little less confused but still confused ahah but as i read through the comments i understood it more. my teacher gave me a question and it’s “are traits controlled by dominant alleles more common than traits controlled by recessive alleles?” and i have to do a CER on it. i am now able to write it i’m no longer confused 😌✌️
Yay! I'm glad the video and comments helped. Let me know if you have additional questions.
That is brilliant how you explained it.. thanks man
Glad you liked it!
Well explained boss
👍
Really love it. THX!! BTW, Is there any difference between Dominant alleles and Dominant genes?
You're welcome! Alleles are variations of a gene, this is the level at which dominance occurs. One allele is dominant over another. However, we usually don't use dominance when referring to genes, because one gene is not dominant over another gene.
Excellent sir
You are great
Thank you!
subscribe to me
I love this classroom
But bro how will we know that which one is dominant and which one is recessive character ??
If your asking about how you will know which trait is dominant or recessive on a school problem, it will be given in some form or another. Talk with your teacher about what they expect you to know for these types of problems.
If you are asking how do scientists determine which trait is recessive and which is dominant, the short answer is, a lot of testing. Read up on Gregor Mendel if you're really interested in learning how dominance is determined.
Let me know if you need me to explain further.
How we know you tell me yellow was dominant and gray was recessive
very easy to understand thank you!
definitely 2 mins well done very nice
So why is the fur color yellow eventhough it is "BB"? Why can't the gray be expressed? Please reply to my question as soon as possible, and you have really great videos. Thanks!
In this case, yellow (orange) is the dominant phenotype, so if there are any upper case letters (dominant alleles, B), then the fur will be yellow. The only way to get gray in this case is to have two recessive alleles (lower case letters). Does that make sense?
Oh. So for example, in humans, if you get "F" (dominant)(green eyes) from mom and "F" (dominant) (blue eyes) from dad, what will your eye color be? Or which color will be expressed outside?
When we say an allele is dominant, it is always attached to the same trait. So if green eyes are the dominant allele, they will always be dominant. Blue will never be dominant over green. This is not how eye color actually works, just an example for illustration.
Okay. I get it now, and thanks a lot.
If I recal,black fur is also a dominate gene,won't crossing that with a dominate Orange result in a calico offspring?
🙏 it's so simple after seeing this ☺️
This was super explained and perfect 👍
How dominant and recessive can be defined easily or say in easy in language???
Dominant phenotypes will always be expressed if at least one dominant allele is present. Recessive will only be expressed if both alleles are recessive.
Thank you so much
You're most welcome
Kindly make a video on topic of epistasis
Great idea 💡
I'll add it to the list.
hi, so i have a question. why is (in the cat example) the orange allel dominant and the gray allel recessive?
that it? 😂😂 I've been struggling with understanding this part of biology. Thank you
Haha, that's it. Sometimes you just need to hear it a certain way.
If the alleles are fF would it be a orange cat or grey?
I think orange because he said the order doesn’t matter, also the capital F is dominant representing orange
Ok so how do I have some dominant and some recursive and my brother vice versa as I have dimples but he doesn't dimples are dominant and I get from my dad but he doesn't but he can roll his tounge which is dominant but I can't please explain just curious
So how do you determine dominant/recessive if there's more than 2 alleles for a single trait?
In the case of multiple alleles (3 or more) you have to know what the hierarchy of the alleles are, which can get pretty complicated.
Let's look at a simple example using rabbit fur color. Imagine there are four possible fur colors for rabbits, brown (B), white (W), black(K), and red(R). I have noted there allele letter by each, you use different letters for each allele with multiple alleles.
Lets say the hierarchy of dominance is such that B>W>K>R. So now we can look at a few examples and determine the phenotype or fur color. BK would be brown, as would BB, BW, and BR because B is the most dominant of all the alleles. If there is a B present, the fur color will be brown. KR would be black while KW or WK would be white. In this example, the only way to get a rabbit with red fur color is to have the genotype RR.
I hope that made sense and answered your question. Let me know if you have more!
Thanks for the clarification! So how are the alleles hierarchy determined in the real world?
I want to you to explain autosomal dominant vs recessive disorders
Is this what you're looking for?
th-cam.com/video/1SZEXbBcYCc/w-d-xo.html
So what is the difference between sex link and recessive?
Hi, Thanks for the lesson. I have one question. What determines which alleles are dominant or recessive at the molecular level?
If i give you two alleles of a gene could you tell which allele is dominant and which one recessive?
Awesome explanation sir 😊...loved dat sentence..small f n small f 😁
nice video... typo in the first slide. allele vs allel
Nice catch!
What will be the colour of the cat if the order is fF ?
Order of alleles does not matter, so fF is the same as Ff.
Thank you beacause of you I'll understand my lesson
Awesome!
If both color appears; less or more ?
You'll have to expound on your question.
@@2MC I mean if both color appear in same baby kitten(half yellow and half black).
Why we use two letters please explain
Your videos are great! Short, simple, and to the point! (Any chance you could fit the missing "e" in at the end of "recessive allel_s" so my students stop telling me about it when I ask them to watch this video? At least I know they are watching. Lol!)
Thanks Gretchen! I wish I was as sharp as your students at catching these spelling errors, unfortunately, I'm not 😞 and the software I use has no spell check 😭
I'll see if can add a note about the spelling errors.
They will love the fact I told you and even better you responded!
simple and understandableeeee
That's the goal!
Nice❤❤❤
Thank you really helpful😁
How the orange cats are dominant alle?
It's just for the example.
Thank you 🙏🙏
the reason for supressing one allele?
One allele is suppressed so that a dominant allele can be expressed. It's just how nature works.
hello i understand you completely
okay i understand.. but how do you know which is which
In the classroom setting, you'll typically be told which is which. In the research world, they test and look at the data to determine which is which.
thank you so much!
You're welcome!
I understood you better than my teacher
Thanks.
hi. just wondering, im looking up on this topic and this comes up , " dominant allele does not subdue a recessive allele" what does it means?
I'm not sure what that statement means by "subdue." The dominant allele will be expressed in favor of the recessive allele, but the recessive allele can still be passed on to future generations. Perhaps that is what the statement is referring to.
Gimme a sec so that means 2 mins for one lesson, so we can flabbergastingly complete more than a half or half a chapter in a day, the whole syllabus in a couple of months, and the best part, vacations come closer!
Please do you have any video on lethal alleles?
How do u know which one is dominant?
For assignments: If you're given letters, the capital letter is the dominant allele.
In science: Dominance is determined by careful study of genetic variations within a species.
Does that help?
2 Minute Classroom yes thx
Nice explination sir
Thank you for this great video!
Thank you for this great comment!
Sir replication of dominant alleles gives dominant or recessive alleles
@@2MC ok thankyou sir
Thank You
U Just nailed it .......❤
What happens when Ff is written as fF will it still be the same since the dominant will be the one that is being expressed and due to the fact that you said that order which it is written in doesn't matter in this case . would that still be correct even though the Dominant should be first followed by the recessive (Ff)