Stages of Meiosis

[neabea141]

just out of curiosity, what is it about this incredibly helpful video would provoke a "dislike"?

[shadylady3103]

this video helped me alot :) & TYSM @anfro18!!!

[coolkid221997]

this vid is where it is at.... it helped me so much

[ekmx]

i'm no longer confused!

Great vid!

[shadylady3103]

hey guy so i dont get this

meiosis 1 is basically the part where chromosome no. gets halved

& meiosis 2 is when the cells get diploid right??

thanks for the video! :)

[anfro18]

@shadylady3103 so Meiosis 1 is where the homologous pairs (one from mom one from dad) that are attached to each other split. Each daughter cell has 1 homolog (not sure how to spell it :P)

Meiosis 2 takes that homolog and splits it into its "sister chromatids" which, when separated are just called chromosomes.

[anfro18]

@shadylady3103 message me back/reply if you need further explanation. I'm writing an exam on this in a few days so I've been studying for it for a while now.

[GumBreed]

finally a video that makes sense

[narutoinpink]

i could be watching porn right now but i have an exam tomorrow on this shit...

[iEatYourBrains13]

@narutoinpink My mother made me!!!! >.<

[x100ACREWOODZx]

what happens after telophase ii?

[awesomenerdfighter]

Found this just in time for a huge biology test tomorrow. Thanks so much for uploading!

[flymetoothem00n]

this helped so much :) thanks

[TheAmbitious10]

thanks 

[frogridda33]

this suks ass

[Bloodsteri667]

I don't understand...why cant a diploid just undergo mitosis, and not duplicate the chromatids. wouldn't that make the cell a gamete?

[woaahhchrissx3]

omg this helpd soo much... THANK YOU!~~~

[parth1100]

im a little bit confused... my teacher told us that # of chromosomes in the four daughter cells are half the original # of chromosomes... can some one explain how???????????

[saugaat1]

@parth1100 Yes they are and this is because at anaphase one the chromasomes are pulled fully intact (46)compared to mitosis and then at anaphase 2 they are pulled apart from the centromere and therefore contain half the amount of genetic material needed (23)

[Joerulesforeva1]

@parth1100 well reproduction in animals happen a baby gets half their genectic information from their mum and half from their dad (not sure about plants coz we havent learned about that yet) and so this is true because you get 23 chromosomes from ur dad and 23 from your mum which makes 46 altogether. If each of the four daughter cells had 46 chromosomes then that wouldnt mean we get half from our mum and half from our dad to make 46. Hope that helped. :) I think I just confused myself :L

[biofitlife]

Good detail- I'd add that the oocyte ("egg") spends most of its time in Prophase I, growing and waiting for a hormone stimulus to trigger the resumption of meiosis.

>pure89, crossing over happens in Prophase I. Chromatin condenses into chromosomes; homologous chromosomes join together to form a tetrad and crossing over occurs.

Crossing over can't happen in anaphase, becase that's when the homologous chromosomes move to opposite spindle poles- the homologous pairs are too far apart!

[jhonsogflint]

terrible

[pure89]

why does it say in my book that crossing over occurs in anaphase? wtf?..

[hiphop1andrbbabe]

@pure89 crossng over occurs in prophas 1

[bubblycandy008]

very helpful.

[padfootspal]

I understand more from this than the 120min my teacher spent trying to teach me. You're amazing! :)

[thecovanite]

same thing with my teacher.

[undrgrnd12]

i see what a centriole is.. but my question is waht are micritubules??

[TheFaithseeker]

Great work.. May my friend S.B. get some help from it for 20th October seminar.. :))

[babysharu]

wow!!amazing..thanks alot!!best video ever..related to bio

[199ki]

I love how you actually put what phase was going on. it helps a lot!! now i understand :]

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