Oogenesis

What is oogenesis? Where does oogenesis take place? How does the Graafian follicle form? How does the ovum form? Watch to find out! =)
00:00 - Oogenesis (Meiosis - formation of secondary oocyte and ovum)
03:54 - Oogenesis (Formation of Graafian follicle)
05:45 - Oogenesis (Ovary)
ALSO WATCH:
Spermatogenesis - • Spermatogenesis
This topic can be found in KSSM Biology Form 4 Chapter 15: Sexual Reproduction, Development and Growth in Humans and Animals - Gametogenesis in Humans
Catering for IGCSE and SPM students.
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[@user-tb5wu3ni9w]

The photos were a big help, and I like how you tied it all together in the end. I feel much more prepared for my A&P exam now. Thank you!

[@MrRuelTuition]

I'm really happy it was helpful. 😊 Hope the exams went well!

[@kotasarath9125]

Thank you sirrr❤️‍🩹

[@emmaeckoldt5023]

genuinely didn't understand until you, thank you, you were a big help!

[@shivaani9004]

finally I can understand c15 of form 4. It has been so hard for me to study this chapter that I always skip it. Your picture explanation made me really understand it. Thank you sir.

[@Viya-ml7cf]

Same

[@porschiermarfo8681]

very easy to understand. Thank you very much

[@dolcea]

thank u for the clear explanationn!!

[@LikaLV]

Wow this was a great explanation. I love my biology teacher but this was the only lesson that had a lot of new vocabulary and it was really confusing but you broke to the point were it was very easy to understand.Thank you! :)

[@jessicanappier1066]

THANK YOU SO MUCH FOR THIS CLEAR EXPLANATION… really helpful 👏👏

[@chuka1549]

Make more videos pls sir this helped me so much 😊

[@user-pt4vq9yc7v]

From Egypt,
Thank you sir 😊

[@starlight520_]

A perfect explanation. Thank you so much!!

[@arthurli8039]

Thanks very clear and detailed

[@blessingbhebe]

Very well explained.Thank you

[@Softchoc]

thank you so much mr Ruel

[@swisslynn1867]

Thank you so much, I was struggling to understand this and you made it so easy to understand!

[@googleclassroom6647]

Thanks for the hard work sir. I am struggling with biology so hard. If without the vid, i would have taken abt half an hour to one hr to understand this instead of 7mins vid long. Thanks in advance for the more coming bio videos.

[@MrRuelTuition]

Don't worry you are not alone. Form 4 syllabus is very heavy. It will be better in Form 5. The key is to not give up and keep going! 💪🏽💪🏽

[@MillicentDeveraux25]

Thank you sir for the clear and crisp explanation! Your hard work is much appreciated

[@MrRuelTuition]

You're most welcome! Thank you for taking the time to comment.

[@mmaseels3643]

Superb❤

[@sanmeetkaur209]

This video was everything I needed.Thanks!

[@MrRuelTuition]

You're most welcome 😊

[@saptarshiroy8284]

Thanks sir,it was of great help 😀

[@falaqkhadas]

amazing explanation satisfied.

[@leahdevereaux9876]

amazing video. thanks so much !!!!

[@lcdp9459]

Very good! Thank you so much. ❤

[@asmanaaz5055]

Tqq so much for this wonderful explanation sir🙏🙏...May God bless uh❤

[@user-lh6fw3mv5k]

Very helpful video..✅

[@kriti77777]

Thank you so much sir❤

[@mipol2875]

Great video! Thanks! ♥

[@samuelmwanza3074]

Excellent

[@abrar2166]

Thank youu that’s is really helpful

[@bhagyashreemohanty1889]

Thank you sir

[@Joice_M]

IT CLICKED, IT FINALLY CLICKED! THANK YOU

[@algypinhero9766]

thanks sir

[@shameetharajeevkumar2243]

Thank you sir ! it was really helpful for my last minute studying for Bio

[@MrRuelTuition]

You're welcome Shameetha. I was supposed to do Menstrual Cycle yesterday but something came up. Hopefully it will be up before your paper!

[@shruti0525]

Thank you ❤

[@AngelicaRecheal]

Thank you so much. I.have finally understood this at university.😅

[@mesbahifatna3915]

Thanks

[@zomlandobiyela9517]

Thanks for this video, I am writing in a few days and I was struggling with this section, thank you!

[@MrRuelTuition]

You're most welcome. Hope it went well for you!

[@farrr11]

sooooooooooo helpfullll 😫😫🙆‍♀🙆‍♀

[@nataliewong0201]

it was really clear with step by step. nice and clear. thank you so much!

[@MrRuelTuition]

I'm very glad. You're most welcome! 😊

[@Hanuman..72368]

Superb explanation

[@MrRuelTuition]

Thank you =)

[@nandinikannan2794]

You explained so well sir thank you...😊

[@MrRuelTuition]

I'm very glad to know that. Thank you!

[@mabelyokeke176]

I watched several youtube videos for this and still didn't understand it
Now I understand this. Thank you

[@MrRuelTuition]

I'm really very glad to know that! Thank you 😊

[@sunlightsaharan3606]

Everything was explained with details except follicular layers like xona pellucida, corona radiata.

[@WaiLeong-xi9es]

OMG BRO YOU TEACHES SM BETTER THAN MY SCHOOL TEACHER CAN YOU COME AND TEACH US PLSS TQ SM

[@marwababiker7457]

how does meiosis 2 give two n cells if it itself was an n cell as it did not undergo interphase

[@inayat8503]

Sooo good explanation. Thankuu❤

[@MrRuelTuition]

Most welcome 😊. Thank you for taking the time to comment!

[@PIDONETHERMI]

Thank youuuu my brotheeeer sir ✌🏼 very good explanation

[@MrRuelTuition]

You're most welcome and thank you! 😊

[@clairechloe3262]

thank you a lot you simplifiied my midwifery

[@MrRuelTuition]

I'm very glad to know that! You're welcome 😊

[@eghonghonomonbude4643]

I love this video sir; very very easy to understand 💃💃💃💃💃💃
God bless you sir 🙏🙏🙏

[@MrRuelTuition]

Thank you for taking the time to comment! God bless you too 😊

[@osamav3742]

perfect

[@izzyweiwie]

can we please hv the pdf of this thankyou so much osm explanation

[@SingamAddabey]

I have a doubt sir ovum need to be fully developed before contacting with sperm so when sperm comes in contact with oocyte then it's lead to zygote right then when will ovum forms

[@Grace-ll9zc]

Thanks sir😁

[@MrRuelTuition]

Menstrual cycle coming up next Saturday 😊

[@vireenharjai1004]

@@MrRuelTuition rlly? My menstrual cycle is gonna happen on Saturday 😗

[@richardferrevandewalle6485]

Thank u

[@MrRuelTuition]

You're welcome

[@maryzulu7230]

Thank you

[@younglee6239]

the pics really helped out! Thank you for the explanation!

[@oi7232]

Ok boss 👍🏿

[@geriosbadran5821]

thanks a lot what is the primornal germ cell ?

[@seemadubey4909]

It's basically a stem cell, which will eventually turn into gametes.

[@xyz-km3pm]

Thank you for this video. I am just struggling with one thing, I wish someone could help me. Is the secondary oocyte that is penetrated with the sperm cell or the ovum?

[@gowridurairajan3166]

The sperm will penetrate the secondary oocyte (immature ovum) first so it can complete meiosis II to become an ovum. Then, the sperm's nucleus fuses with the ovum's nucleus (fertilisation).
Hope this helps!!

[@SingamAddabey]

​@@gowridurairajan3166 It would have been clear when it said on video

[@frzdytheconsumer8094]

1:25 **ATRESIA

[@user-qq2bx3mk5i]

Sir secondary oocyte say ovem nikla lakin fertization kahan ho gi phir kiun k zygote bnana chahiye not ovum

[@lozadakeanjay7947]

can i have the picture please?
i was going to use it for my report

[@user-ln8ug6zy6d]

I never knew anything about this before watching this video but after it oh my God 😭 I learnt more than enough thanks a lot ❤😊

[@Sarahdiariess]

SIR ? AND WHAT IF THE SECONDARY OOCYTE IS NOT FERTILIZED WHAT HAPPENS ?

[@MrRuelTuition]

It will degenerate and be discarded with the menses.

[@xannaancabdiraxmaan1661]

so does that mean the ovam is zygote

[@user-qq2bx3mk5i]

Lakin secodary oocyte k sath jab sperm combine kray ga tou ovum kiun bna zygote kiun nahi bna ?? Ovum aur zygote tou different hotay

[@rachelsire2546]

So In meiotic event an ovum produces an ovum after it has been fertilized🤔🤔??

[@kimsyaf8144]

3:04 cikgu kenapa dia 2n

[@watchaccount]

you say oocyte 2 has 23 chromosomes. Where are the chromosomes of the second polar body from? mitosis?

[@geriosbadran5821]

i think the excess of the chromosome goes to the polar body

[@alexanderurquhart7496]

Haploid does not mean half of the chromosomes. It means single chromosomes. This is a MAJOR misconception that proliferates because of so many videos using the term incorrectly.
Hap comes from Haploos (Greek) meaning singular. Meiosis does indeed reduce the number of chromosomes per set in half. However, only diploid organisms will produce haploid gametes after meiosis, as 2 chromosomes per set divided in half equals 1 chromosome per set, AKA: haploid. A tetraploid organism undergoing meiotic division would thus produce diploid gametes. An octoploid organism would produce tetraploid gametes, etc.
PLEASE STOP describing Haploid as half. THIS IS NOT CORRECT and proliferates confusion in students!

[@tccrosbyy]

Cut the man some slack. Most students are specifically learning about humans, so I think the descriptions are quite fitting and the least confusing. That being said, thanks for the info.