Difference between multiple alleles and polygenic inheritance
Multiple alleles vs polygenic inheritance - This lecture explains about the difference between multiple alleles and polygenic inheritance. Alleles refer to different versions of the same gene. So a single gene can have multiple alleles. For example in fruit flies there is a single gene that controls eye color, and the eye color of the fly depends on the alleles they have for that gene (since they have two copies of every gene, being diploid).
A polygenic trait refers to any inheritable trait that is controlled by multiple genes, and each of these genes can have multiple alleles. For example, eye color in humans is a polygenic trait. There are at least three different genes, each with multiple alleles, that determine eye color in humans. Polygenic traits don't follow patterns of mendelian inheritance.
So in summation the difference is multiple alleles refers to different versions of one gene and polygenic traits refers to a single trait which is controlled by multiple genes (each with multiple alleles).
Source: Yahoo answers.
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Пікірлер: 132
Thank you, I have an exam tomorrow and I was confused with the difference. You saved my life
@shomusbiologyofficial
4 жыл бұрын
You're welcome. Glad to hear that you're getting benefit from my lectures
thanks for bringing out a point that i had not understood before and making my school life better.
I wish you were my genetics lecturer Shomu ! Thanks a lot ❤
Thanks, good review material for my lab bio class.
If I have multiple alleles how can I know that these alleles belong to one gene or more than one gene?
buddy you are great.! 👍 your explanations are very simple and easy to understand.. your videos helped me alot. Thanks for sharing your knowledge. 👍
@shomusbiologyofficial
7 жыл бұрын
+king kaku thank you. Glad you liked my lectures. Please subscribe and share
Thank you so much.. it really helped me.
Hello sir..i want u to solve previous year question papers after done with the relavent topic
Sir, i got that multiple allelism is due to interallelic or intragenic interaction but what about polygenic inheritance?? Is it intragenic or intergenic... I had a bit of confusion in it?? Pls help...
Thank you sir for making this concept crystal clear for me 😊😊
@shomusbiologyofficial
4 жыл бұрын
You're welcome. Glad to hear that you're getting benefit from my lectures
I liked it , thank you so much.
I was thinking about this and I thought this won't have a proper answer in google Anyways I googled and found this video. You understood what confuses us and made videos accordingly I'm grateful
@shomusbiologyofficial
2 жыл бұрын
Thank you so much for appreciating my efforts
sir, like in TT and Tt both plant have same height similarly is it possible that persons having AABBCC and AaBbCc skin colour gene have same skin colour. if no then how can two similar dominant alleles(A and A both) can work at same time?
@nagaharshita3985
5 жыл бұрын
How can it possible for plant height it is one gene but in skin colour it involves 3 genes that' the mechanism of polygenic inheritance......
Thanks alot doctor ❤️🌹
then what is the differnce between codominance and multiple allele????
Thank you. Works for me :)
Thank you! Remote learning is always so hard-, appreciate you making it easier.
@shomusbiologyofficial
8 ай бұрын
Glad to hear that you're getting benefit from my lectures. Stay tuned for more
thank you, sir, great vid, one thing though, some sources I sited say that multiple allelism can only be considered when more than two alleles determine the dominance of one gene, and two alleles is just normal allelism.
Thank you so much cleared my doubt
Short but informative explanation
Great, very simple way to understand. You made it very easy and clear concept.
@shomusbiologyofficial
3 жыл бұрын
You're welcome. Glad to hear that you're getting benefit from my lectures
Thanks Shomu
Thank you man you helped me a lot with my bio homework 📚
@shomusbiologyofficial
5 жыл бұрын
Glad to hear that you are getting benefit from the videos
Thank you sir.. i get almost all answer from your videos
@shomusbiologyofficial
5 жыл бұрын
Glad to know that
Sir, why crossing over doesn't occur among multiple alleles??
These vedios are help me.. can you share a vedio about lozenge locus of Drosophila
Thanks for the responsiblity carried out
@shomusbiologyofficial
6 жыл бұрын
+Kefas Amos thank you. Glad you liked my lectures
thank you so much !!
Thanks a lot sir your video is help me a lot ...my confusion is clear now. Amazing lecture sir
@shomusbiologyofficial
4 жыл бұрын
Thank you. Glad you liked my lectures
Thank you so much...Topic is crystal clear
@shomusbiologyofficial
3 жыл бұрын
You're welcome. Glad to hear that you're getting benefit from my lectures
Thanks a lot :)
an allele is present on the same locus of homologous chromosome, and we only have a pair of homologous chromosomes, then how is it possible to have three alleles of a same gene??
@shomusbiologyofficial
8 жыл бұрын
+Chandrachur Mukherjee there are no three alleles. There are two alleles but the mixture of those two give rise to the third kind like we see in blood group determination.
@shomusbiologyofficial
8 жыл бұрын
+Shomu's Biology by mixture I mean when bother the type of alleles expressed
@anybodyany7409
6 жыл бұрын
Three alleles are present among whole population but at any one time in every individual only two alleles Are present. For example a person may have allele A on one chromosome and allele O on anther chromosome of a pair and will have blood group A. Another person may have Allele A and Allele B and so on. Shomu has not talked about allele O the third allele for blood group phenotype. He is talking about only two alleles and calling it multiple alleles. Multiple allele phenomenon is used when a gene has more than two alleles.
@lovealltennis2160
5 жыл бұрын
@@shomusbiologyofficial what happens if you have trisomy
Very good overview. Thanks!
@shomusbiologyofficial
3 жыл бұрын
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Thank u sir
Very nice thank you very much I liked and subscribed
@shomusbiologyofficial
2 жыл бұрын
Thank you so much for appreciating my efforts
Saved my ass..Again 😅❤️🔥🔥🔥🙏🙏🙏. P.s. You are a legend and a saviour sir .🙏❤️
@shomusbiologyofficial
4 жыл бұрын
Glad to hear that you're getting benefit from my lectures. Please subscribe and share
this helped a lot! thank you
@shomusbiologyofficial
2 жыл бұрын
Glad it helped
Well...No doubt you r a great teacher but this VDO actually confused me... Coz my textbook is saying something different 🤔 It is defining multiple alleles as *More than two forms ( alleles) of a gene in a population occupying the same locus on chromosome or its homologue are known as multiple alleles* Can you or anyone please explain..🙃
Thank you
So, an allele is one of many characteristics of a gene. How many exactly?
Thnx sir u clear my doubt
@shomusbiologyofficial
6 жыл бұрын
+Harsh Trivedi glad to help you out
Ah! Sir i have a doubt that is, is AABBCC is for darkest or brightest??
Thanks sir🙏🙏🙏
Wonderful
this is amazing
@shomusbiologyofficial
4 жыл бұрын
Thank you. Glad it helped
thanks
Well-explained.
@shomusbiologyofficial
Жыл бұрын
Thank you
Gracias
Good explanation..Thanks...
@shomusbiologyofficial
5 жыл бұрын
You're welcome
Thank you for making this clear to me finally I understand haha
@shomusbiologyofficial
2 жыл бұрын
You're welcome
At 5:52,as u said sir AABBCC is Whitest Skin n aabbcc is darkest skin But In case of AABBCC there is 6 Dominant genes that means more no. of Dominant genes -more no.of melanin Formation occour that leads to More Black( i,eDarkest ) n In case of aabbcc there is no Dominant gene tha mean no melanin Formation leads to Albino Skin(white colour). My doubt is Sir AABBCC leads to Whitest or Dark Skin colour??
@anjlichauhan3272
4 жыл бұрын
Ya I too ,got stuck there ...I referred my book there it is given as you just commented
@12debaduttadas23
4 жыл бұрын
He actually gave an example 😅
@editingworld1306
3 жыл бұрын
AABBCC leads..to darkest n aabbcc to lightest skin colur.Its written in NCERT too.
Thank you so much sir
@shomusbiologyofficial
3 жыл бұрын
You're welcome
Your voice is good
in polygenic inheritance AABBCC IS VERY DARK COLOUR AND aabbcc is very light colur time @ 5.55 but u have given opposite sir which is right sir
@roselineanna7427
3 жыл бұрын
I think he just gave an example, AABBCC is darkest and aabbcc is whitest 👍
Lovely explanation
@shomusbiologyofficial
5 жыл бұрын
Thank you
Thank you sir
@shomusbiologyofficial
Жыл бұрын
You're welcome
Sorry to say sir....u r the best teacher but i think there is a little mistake probably i m wrong but i think capital letters using for the dark skin while small case letters for light skin
@shomusbiologyofficial
5 жыл бұрын
Thank you so much for appreciating my efforts. Please let subscribe and share
Thanks alot ❤✌
@shomusbiologyofficial
2 жыл бұрын
You're welcome
Thank youuuuu!!!
@shomusbiologyofficial
5 ай бұрын
You're welcome
nice
Can you clarify sir which of the statement is correct? "For each trait 3 or more genes are required" Or "Only 1 gene is required for 1 trait"
@shomusbiologyofficial
3 жыл бұрын
First one for polygenic
@Maria-ph6wb
3 жыл бұрын
@@shomusbiologyofficial OK Tnx
All dominant are dark not white ND all recessive are light
sir can i take RR(round) nd rr(green) for monohybrid cross ???
@HighHell99
7 жыл бұрын
No.
Superb
@shomusbiologyofficial
4 жыл бұрын
You're welcome
The 38 people who hit dislike are computer students
Got it
sir in a diploid how many maximum allele present??
@freq3493
6 жыл бұрын
jaydipbhai vala allele of one gene is present in each chromosome in a homologous chromosome.
Gud
Bro i think u mistaken in skintone colour according to genes
finally found my tech support
@shomusbiologyofficial
5 жыл бұрын
You're welcome
Correction all AABBCC is the darkest form aabbcc is the whitest one
@Heisenberg-chan.69
2 жыл бұрын
It's about what we assume. Here he assumes that A is white gene and a is dark gene Hence AABBCC is white gene And aabbcc is dark gene
I think black and grey are two forms of body colour not eye colours.
6:02 bro held himself with his life to not say "blackest" skin tone 😂
AABBCC is for darkest and aabbcc is the lightest skin tone you said the opposite
@shomusbiologyofficial
2 жыл бұрын
You can choose any one of them. It doesn't matter.
The recssive lead to the albino and dominant lead to black not recessive lead to the black colour
AABBCC is the darkest skin tone
AABBCC is the darkest skin tone( Pure black) and aabbcc is the whitest skin tone i.e albino. You wrote lil opposite Sir
@Heisenberg-chan.69
2 жыл бұрын
It's about what we assume. Here he assumes that A is white gene and a is dark gene Hence AABBCC is white gene And aabbcc is dark gene
Recessive not reccesive
It's character.. not trait... Gene controls a character
1- In polygenic can we have 2 genes? , 2- also in multiple alleles can we have 2 alleles?
@lovealltennis2160
5 жыл бұрын
Do you even realize the meaning of this video.....?
Dominant gene cause dark skin tone , and light colour is recessive character
Pure black parent genotype is AABBCC
AA BBCC DARKEST aabbcc lightest
@mansi7026
3 жыл бұрын
Exactly, i was confused too
thanks
@shomusbiologyofficial
5 жыл бұрын
You're welcome