Non Dysjunction of Meiosis I and II Made simple

These videos are designed for medical students studying for the USMLE step 1. Feel free to comment and suggest what you would like to see in the future, and I will do my best to fulfill those requests.

[@b00n15]

this video is from 2012 but is helping me with my medical school class in 2022. RUclips is timeless

[@sebastianbastard270]

shouldn't nondisjunction happen at anaphase instead of metaphase? You explanation focuses on anaphase yet you kept referring to metaphase.

[@anasm4496]

Who else is here the night right before the Bio test?

[@meryem4184]

Excellent demonstration. Using letters to represent the chromosomes was very helpful

[@axisgraf]

excellent! just what I needed to know thanks so much!!

[@m.a8641]

Sorry, but how would be the case for XYY or Turner's syndrome? I don't understand the rules you have made here.

[@simondoan69]

I thought the chromosomes double only in prophase?

[@MakingLifeA180]

meiosis 1- heterodisomy
meiosis 2- Isodisomy

[@evilminion3173]

Impressive work!! Thanks to you now I understand this topic with no issues!!

[@centyrone]

Why do you get AC and AC for the haploid gametes instead of AA and CC?

[@doctormwpepper]

Because that's what the parents have

[@chelseafielding199]

SO HELPFUL thank you! just what i needed!

[@emilymendenhall9209]

Wow! This was so helpful!

[@danielmasunungure]

Awesome video....would you please mind doing a video on mapping and linkage
.

[@myszkaJagi]

Thank you so much, this is exactly what I was looking for.

[@obaapapapabi3015]

It's Anaphase, not Metaphase. Anaphase involves the pulling away of homologous chromosomes or sister chromatids.

[@aravindsuresh8092]

really good..thank u so much..

[@tramiboa]

Very helpful, thank you!

[@nitishgupta7145]

marvellous

[@ciaranhiggins8302]

very good thank you

[@uhhtony1920]

thank you

[@LoveMedicine100]

You're welcome

[@vazandrea8416]

so helpful thank you

[@warotdame]

so good

[@joystiles3848]

Are A and C homologous chromosomes?

[@paulinan1069]

I think so, that's why after they duplicate, they would pair up during metaphase.

[@EMed9423]

Yes! A+C are homologous chromosomes, and then A+A and C+C are considered sets of sister chromatids

[@dancincoolkid]

thank you!

[@chatalola96]

thank youuuu

[@Sbtraveldotcom]

Not so clear.waste of time.

[@ya4wl]

Agreed

[@johnmagar8874]

im sorry but this is horrible

[@ya4wl]

Agreed!!

[@autopsy69]

Very helpful.
Life saver :*

[@TheRaquelMS]

thank you!