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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Thank you, I have an exam tomorrow and I was confused with the difference. You saved my life

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thanks for bringing out a point that i had not understood before and making my school life better.

[@eh1932]

Thanks, good review material for my lab bio class.

[@niap404]

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...

[@letstudy2425]

Hello sir..i want u to solve previous year question papers after done with the relavent topic

[@vinodbhaiyya9323]

Thank you sir for making this concept crystal clear for me 😊😊

[@shomusbiologyofficial]

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[@mohamedelnasharty1059]

If I have multiple alleles how can I know that these alleles belong to one gene or more than one gene?

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Great, very simple way to understand. You made it very easy and clear concept.

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[@nanamimomozono1113]

Thank you so much.. it really helped me.

[@ankitjaiswal7411]

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]

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......

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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

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I liked it , thank you so much.

[@anud6920]

then what is the differnce between codominance and multiple allele????

[@souravkhanra5507]

These vedios are help me..
can you share a vedio about lozenge locus of Drosophila

[@AjayGupta-fn5ui]

Sir, why crossing over doesn't occur among multiple alleles??

[@SusmitaBhowmick3]

Short but informative explanation

[@aaditya3766]

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..🙃

[@ompriyadarshini2529]

Thank you so much cleared my doubt

[@ChandrachurMukherjee96]

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]

+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]

+Shomu's Biology by mixture I mean when bother the type of alleles expressed

[@anybodyany7409]

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]

@@shomusbiologyofficial what happens if you have trisomy

[@patriciahuff6565]

Very good overview. Thanks!

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Thank u sir

[@harshtrivedi4357]

Thnx sir u clear my doubt

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+Harsh Trivedi glad to help you out

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[@kanamonnueng]

Thanks a lot :)

[@user-ue4fp1oi2q]

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.

[@gulbu6603]

Good explanation..Thanks...

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[@guruprasadgaikwad1977]

Lovely explanation

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[@yosobantabehera8939]

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]

Ya I too ,got stuck there ...I referred my book there it is given as you just commented

[@12debaduttadas23]

He actually gave an example 😅

[@editingworld1306]

AABBCC leads..to darkest n aabbcc to lightest skin colur.Its written in NCERT too.

[@cedarpoplar7443]

So, an allele is one of many characteristics of a gene. How many exactly?

[@MomoSapam-lo3ix]

Ah! Sir i have a doubt that is, is AABBCC is for darkest or brightest??

[@Maria-ph6wb]

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]

First one for polygenic

[@Maria-ph6wb]

@@shomusbiologyofficial OK Tnx

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Thank you

[@KeyXu03]

thanks

[@willambeasley9609]

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[@KiranDevi-fs6et]

All dominant are dark not white ND all recessive are light

[@gappy10123]

Thank you for making this clear to me finally I understand haha

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[@phyuzinaung6996]

Well-explained.

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Thank you

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Gracias

[@supravatrang5235]

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[@danielrayner9381]

Wonderful

[@dimpichaurasiya730]

nice

[@suvesuve854]

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]

I think he just gave an example, AABBCC is darkest and aabbcc is whitest 👍

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Thank you so much sir

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Thank you sir

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Superb

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[@12debaduttadas23]

The 38 people who hit dislike are computer students

[@azmamunnner5088]

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

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[@prithvirajbiswal1774]

sir can i take RR(round) nd rr(green) for monohybrid cross ???

[@HighHell99]

No.

[@rashmikagupta9301]

Got it

[@paramanandsagar6473]

Thanks sir🙏🙏🙏

[@manoharkumar4996]

Gud

[@jaydipbhaivala8165]

sir in a diploid how many maximum allele present??

[@freq3493]

jaydipbhai vala allele of one gene is present in each chromosome in a homologous chromosome.

[@thundernarcos8707]

Bro i think u mistaken in skintone colour according to genes

[@Fornite735]

finally found my tech support

[@shomusbiologyofficial]

You're welcome

[@challagundlakrishnarao8760]

I think black and grey are two forms of body colour not eye colours.

[@redex8528]

Correction all AABBCC is the darkest form
aabbcc is the whitest one

[@ASMDxFTW]

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

[@prajaktasampat3180]

AABBCC is the darkest skin tone

[@sarahswonger1426]

Recessive not reccesive

[@Cobratatehere]

AABBCC is for darkest and aabbcc is the lightest skin tone you said the opposite

[@shomusbiologyofficial]

You can choose any one of them. It doesn't matter.

[@kyu5940]

6:02 bro held himself with his life to not say "blackest" skin tone 😂

[@sambiology8970]

It's character.. not trait...
Gene controls a character

[@manzoorkhan5420]

The recssive lead to the albino and dominant lead to black not recessive lead to the black colour

[@priyatoshreang9251]

AABBCC is the darkest skin tone( Pure black) and aabbcc is the whitest skin tone i.e albino. You wrote lil opposite Sir

[@ASMDxFTW]

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

[@HamzaSami90]

1- In polygenic can we have 2 genes? , 2- also in multiple alleles can we have 2 alleles?

[@lovealltennis2160]

Do you even realize the meaning of this video.....?

[@user-ff2rl2vn4g]

Dominant gene cause dark skin tone , and light colour is recessive character

[@ashokbhagat1819]

Pure black parent genotype is AABBCC

[@priyaaakg8236]

AA BBCC DARKEST
aabbcc lightest

[@mansi7026]

Exactly, i was confused too

[@mariamnahrawi7552]

thanks

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