IGCSE BIOLOGY REVISION [Syllabus 17] - Monohybrid Inheritance

[@Cambridgein5minutes]

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Some teachers deserve Oscar's for saving lives of thousand of childrens

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Oscars is for the movies... I think they should receive Nobel Prizes

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Personal notes - Alleles are different versions of the same gene - Genotype is the genetic make-up of organisms whereas phenotype are the characteristics that are visible in that organism e.g. a person can have alleles for both brown and blue eyes but the color will visible will be - Organisms can be homozygous or heterozygous - Alleles can be either recessive or dominant - Punnet squares: 1) parents - BB and bb, offspring Bb 100% chance 2) parents - Bb and bb, offspring Bb or bb 50% chance - Co dominance: A pair of alleles neither of which are dominant to the other so they both have impact on the phenotype

[@itz_al4nd784]

Thx for sharing 😊

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Thnx alot!

[@noname-tr7fy]

me here......

[@Calum283]

L comment

[@EvieDavies-z5k]

human biology exam starting in an hour ... youve literally saved my life tysm!

[@Aisha-gd6dq]

Even after 5 years this is so helpful thank you

[@girishashivani9872]

With this i will pass bio

[@Calum283]

bad gramma pal.

[@maherischlong]

@@Calum283 the only person with bad grammar here is you, pal.

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you are literally the only hope I have left for bio

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Dalia Darkazanli that’s me rn 😭😭😭

[@Melly3000]

thank you so much. You are really helping me and I can't forget anything that you have taught. I appreciate you hard work. I'M sure of my A* this year in Biology

[@nihilisticnirvana]

did u get it

[@athenaenergyshine7616]

I am doing BTEC level 2 science instead of GCSE but were doing this topic. i find genetic hard maybe because theres so many terms. but love this so much you explain it so clearly

[@Calum283]

didn't ask.

[@f_xh356]

Thank u so much your saving lives bro😭🤍🤍

[@vaibhavmaloo7909]

i have a question if there is a flower that has dominant white alleles(W) and dominant red allele(R) the plant shows co-dominance what will be the colour of RW The mark scheme says pink but isn't is supposed to be a flower with equal white and red patches

[@johnbravo4251]

U should send the actual question so I can understand it better

[@Kamabakogonpachiro]

Co-dominant Aelle is when both of the characters are expressed so it is supposed be pink because it’s given in edexcel bio book

[@abdullahdurrani182]

At 4:34 isnt the Bb supposed to b brown eyed u showed it as blue??

[@nelithnafernando6911]

isn't it suppose to be "bb" tho..?? since its blue eyed..

[@nelithnafernando6911]

okie okie i was right..oh nd btw he showed the correct ver. in the end :)

[@dovev8349]

you are a lifesaver thanks.

[@abdulrahmanhammad1753]

@ 7:59 So the abnormal allele is recessive while the normal allele is dominant? And is this always the case?

[@Cambridgein5minutes]

Generally yes that is the case. A defective allele will mostly be considered the recessive one

[@akshat_joshi8888]

at 4:23 the punette squre is incorrect

[@simonsanyangore1551]

lol, i thought i was the only one who noticed

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@@simonsanyangore1551 me 2

[@MuhammadAzaan-n9q]

true😂😂😂

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Is this channel Videos are enough in concept building ??

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Thank you

[@goku5506]

You are literally khan academy V2.0

[@lyricallyawesome9765]

4:32 its bb not Bb

[@girishashivani9872]

Thank uuuuuuu helpful

[@millychebet5050]

i loved it thanks

[@ainakampanza7418]

Thank u

[@ImOmerAhmed]

thank you