Chromosomal Inheritance

In this video Paul Andersen describes genetics at the chromosomal level. He begins with a simple monohybrid cross as viewed through Mendelian genetics and then shows how genes are distributed through meiosis to possible gametes. This is following by a dihybrid cross and a cross that shows gene linkage.
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All of the images are licensed under creative commons and public domain licensing:
"File:Drosophila Repleta Lateral.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. en.wikipedia.org/wiki/File:Dro....
"File:Gregor Mendel.png." Wikipedia, the Free Encyclopedia. Accessed March 11, 2014. en.wikipedia.org/wiki/File:Gre....
"File:Morgan Crossover 1.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. en.wikipedia.org/wiki/File:Mor....
"File:Punnett Square.svg." Wikipedia, the Free Encyclopedia. Accessed March 11, 2014. en.wikipedia.org/wiki/File:Pun....
"File:Thomas Hunt Morgan.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. en.wikipedia.org/wiki/File:Tho....
Giac83, Independent_assortment_%26_segregation svg: LadyofHatsderivative work: Table Showing How the Genes Exchange Acording to Segregation or Independent Assortment during the Meiosis and How This Translates into the Mendel' Laws, 14:10 (UTC). Independent_assortment_%26_segregation.svg. commons.wikimedia.org/wiki/Fil....

[@AdrianlovesAerosmith]

you saved my ass in highschool and you're still saving my ass in college genetics lol.

[@faboox3]

same here haha

[@Boooommerang]

THE PERFECT EXPLANATION! Thanks! I have watched more than 30 videos - without compreehension - until watching this

[@joshuabell8000]

I always binge watch your videos before an AP bio test. Thank you.

[@sav16658]

me rn

[@magi.c]

@@sav16658 Same! Which unit are you on? I'm about to take a test for unit 5

[@lefoskan8977]

my only hope for tomorrow's exam

[@kanaparthiramesh1767]

Me too....

[@loganpayne2450]

Did you pass?

[@milley1011]

That’s me right now

[@jackadams8648]

5 years later, me too. How’s life

[@cvsarelibraulio1720]

Did you ever pass that exam

[@shayerasherzai5659]

i love your videos they are sooo helpful

[@marty9609]

You make biology a bit easier to understand, thank you! ❤

[@iema6398]

Marty it always has been easy

[@rayofsunshineb5347]

@@iema6398 not to everyone

[@generalturner9628]

I know I will have to watch this again.

[@Meeralm06]

6 years later how is life

[@chryskou8893]

You, sir, just saved me... Thank you very very much!!!!

[@theLauraOspina1]

I love you so much, thank you for these videos

[@kellyburns7309]

Thank you for breaking that down. It wasn't as clear in class in regards to recombination.

[@vishakhajaglian3337]

I like your way of through the point explination.

[@caribaez5711]

khan academy and mr. andresen are my favs.

[@shahbaazali1195]

i am confused to the core now

[@philosphic]

Mohammed Ali keep practicing, it will get better trust me.

[@user-hk6qu7rq2n]

not only just helpful, but Suuuper helpful thx

[@NathanMian]

This is beautiful ^ ^ Thanks A lot brother

[@Varcieh]

Wouldn't the parents of the first crossing example (where both genes Y & R are on the same chromosome) produce more than only 4 possible gametes due to crossing over during meiosis?

[@songthanh896]

Thanks very much ! It's very useful !

[@skj171]

it was very helpful

[@iriserhi8988]

if you have a test 9th period too and you’re here we got this

[@Longpan898]

Great video / channel

[@animate5747]

Thank you soo much sir..!!

[@jbc6467]

3 of 30+ of my oohsites (as in 'ooh that hurts' when they are excavated from their site) inherited a chromosomally chaotic composure, where only 30% of mine are xo, latterly ovarian failure became a factor yet 3 in 8 were normal cycle. there were no commonly abnormal results, although in the last as the patient i did not receive info on the non-viable results, which also all arrested before day5. NB: Male factor - good mongrel stock.

[@vastuexpertinnoida3411]

Helpful . thank you

[@shayanjason8145]

Amazing video👍

[@haribabug3144]

Sir, will you please upload your esteemed video on the topic of Lac operon concept and pbr 32 plasmids.

[@raz054]

????woww u r good! but please can u make a genetics playlist

[@kgandapur8848]

Even if the genes of both the trait are on the same chromosome , can't they just cross over and produce 4 different type of gametes?

[@thejortix2696]

I need this video for a exposition of science ;-;

[@JoyForJack]

Hello Mr. Anderson

[@vedant6633]

why there is no crossing over

[@SA-be1bn]

Because it will end up with the same outcome

[@jackadams8648]

@@SA-be1bn only 4 years late

[@lesliebach639]

Excellent summary, but you're using the term "gene" in place of "allele". "Y" is the dominant allele and "y" is the recessive allele for the seed color gene.

[@marty9609]

Leslie Bach thank u bcz I was a lil confused!

[@beingmetoday2605]

Alleles are alternative forms of gene.. so alleles are genes

[@adityawasnikgaming7974]

yeah very helpful..thanks sir (y)

[@hanabeligho9030]

I do not get it especially the genetic problem like RRYY ,RRyy

[@ammaralam1948]

Ausome sir

[@ompriyadarshini2529]

U r simply awsm

[@elmarbasim7865]

And I thought biology was hard...

[@xiiixiiih.16]

A pun [=]

[@masroorismail5621]

huh ! got that atlast !!

[@aznshuffler1]

hello biology class.

[@rileybenedict1804]

Davis Dang hi

[@iema6398]

Davis Dang hello

[@martinaguida6978]

Ai veterinari baresi che leggono: Dovete solo controllare sui vostri registri a partire dal (10)febbraio 2014 e selezionando tutti le yorkshire femmine introdotte in ambulatorio come randagie (inizio visite di MOITA), riconoscete Moita, verificando anche il segno particolare che ha, e avvicinarmi a lei (perché mi riconoscerebbe se mi vedesse, sia Moita che la signora). Grazie. La mia yorkshire è stata rubata da una signora barese, aveva un collare CELESTE. È priva di microchip a mio nome. La storia in breve : Mi é stata regalata una yorkshire che dopo sei anni una signora barese mi ha rubato. Ha una cisti sotto il ventre, tonda bianca e dura prima della vulva, a meno che non gliel abbiate tolta voi veterinari. É soggetta a dermatite; coda e orecchie lunghe, non sterilizzata e non microchippata e si chiama Moita. La signora le ha dato un altro NOME. Non viene rispettato l'art. 189/2004. Se il suo veterinario la riconosce mi contatti. m.facebook.com/profile.php?id=741861079185075&view=page&ref=bookmarks . Data di riferimento: Febbraio 2014. Luogo: via Giulio Petroni 8c/policlinico-Bari: €con un mi piace sulla PAGINA si è utili m.facebook.com/profile.php… (facebook.com/Excasermaliberata?fref=ts&__nodl è; qui che la mia yorkshire di cinque anni mi è stata restituita dopo che mi era stata rubata per circa UN MESE dal policlinico di Bari però La signora che si è presa cura di lei dal furto alla restituzione me l ha nuovamente rubata. Al momento della restituzione la signora mi ha detto di aver portato MOITA (chiamandola con un altro nome) dal veterinario, non specificandomelo, credendola randagia perché senza microchip quindi ora Moita potrebbe avere il microchip e risultare un bene materiale della signora barese. La restituzione ě avvenuta perché Moita mi ha riconosciuta sentendomi, ma non vedendomi e questo può essere testimoniato da estranei. Fino ad oggi nessuno di dovere mi ha appoggiato per tutelare l'animale dal disagio in cui è costretta a vivere, secondo l art. 189/2004, a causa dell'eventuale microchip inserito dalla signora per cui Moita SAREBBE di proprietà della signora: un bene materiale suscettibile di percezione costretto in uno stato di stress:È MOITA CHE DEVE DECIDERE CON CHI STARE. A che pro facciamo le leggi per gli animali??) CHIEDO DI CONTROLLARE NEI REGISTRI DELL'ASL GLI INSERIMENTI DEI MICROCHIP IN BARI dal 10/02/2014 ad orA. m.facebook.com/profile.php?id=741861079185075&view=page&ref=bookmarks. #GF14

[@taspeteris]

Not the best video I've seen you do. Please re-record in English and a bit slower

[@gustavosanchez4211]

it was not helpful sorry!!

[@iema6398]

Gustavo Sanchez fuck yourself

[@hatmoza1]

This is easily one of your worst explained videos.

[@TWOCOWS1]

very badly taught. i m glad he isnt my teacher. being knowledgeable and being able to transmit knowledge are two very different things. this fellow needs to learn how to relate the information. the way he "teaches" you need to already know the thing to understand what he say. that is not teaching; that is "reviewing" of what is already learned.

[@Kymv8382]

Thats what I was thinking , plus he goes ridiculously fast. Probably why I click off of his videos with 45 secs.

[@rishabm502]

lol maybe ur just dumb bud

[@beingmetoday2605]

Then go learn the basics and come back to see his intelligence cuz no one's going to explain it perfectly like him... He has combined the genetic basis of inheritance on Mendel's cross..

[@songthanh896]

Thanks very much ! It's very useful !