08/19/2018

Gametogenesis & Ovulation

By Live Dr - Sat Oct 25, 10:12 am

1) Proliferation of germ cells by mitosis

in wall of yolk sac in the gonads (fetal)

(primodial germ cells)

male(testis): spermatogonia 2n,4c (life long)

female(ovarie): primary oocyte 2n,4c (at birth)

(2) Meiosis (maturation division)

vNormal number of chromosomes must be maintained from one generation to another, by means of reduction of the chromosomal complement of the gametes from diploid (2n) to haploid (1n).

gametogenesis

vMaturation process of the germ cells( spermtozoon and ovum) by means of two times of meiosis .

(3) Spermatogenesi & oogenesis compared

vSpermatogenesis stars at puberty , lasting life-longh

1 spermatogonium 4 functional spermatozoa

in about 2 monthes

vOogenesis stars at puberty, until menopause

1 primary oocyte 1 viable ovum with numerous oocytes arrested

in about 1 month

47 Comments

Comments -49 - 0 of 47First« PrevNext »Last
  1. Thank you ever so for you blog.Much thanks again. Much obliged.

  2. “Great amazing things here. IВЎВ¦m very glad to peer your post. Thanks a lot and i’m taking a look ahead to touch you. Will you please drop me a mail?”

  3. oweGnN Pretty! This has been a really wonderful post. Thank you for providing these details.

  4. XZsMBM You have touched some fastidious factors here.

  5. “There is certainly a great deal to learn about this topic. I love all of the points you made.”

  6. “Simply wish to say your article is as astonishing. The clarity in your post is simply great and i could assume you are an expert on this subject. Fine with your permission allow me to grab your feed to keep up to date with forthcoming post. Thanks a million and please keep up the rewarding work.”

  7. I am so grateful for your blog post.Really looking forward to read more.

  8. “My brother suggested I might like this blog. He was totally right. This post actually made my day. You can not imagine just how much time I had spent for this information! Thanks!”

  9. Im obliged for the post.Really thank you!

  10. That is really fascinating, You are a very skilled blogger.

  11. The move by the sports shoe business that clearly has ravens nfl nike jerseys online concerned, said he thought he was one of the hottest teams in football.

  12. Really clear website , thankyou for this post.

  13. I truly enjoy reading your blog and I look forward to your new updates.

  14. Extremely individual friendly website. Immense info available on couple of clicks on.

  15. We stumbled over here by a different website and thought I might as well check things out.

  16. I think this is a real great blog article.Really looking forward to read more. Awesome.

  17. just beneath, are a lot of completely not connected websites to ours, on the other hand, they are certainly worth going over

  18. This particular blog is definitely educating additionally factual. I have found a lot of helpful tips out of this blog. I ad love to come back again soon. Thanks!

  19. You make it enjoyable and you still take care of to keep it smart. I can not wait to read much more from you. This is really a tremendous website.

  20. “I keep listening to the news update talk about getting free online grant applications so I have been looking around for the most excellent site to get one. Could you advise me please, where could i get some?”

  21. Passion the website– very individual pleasant and lots to see!

  22. Look advanced to far added agreeable from you! However,

  23. Appreciate you sharing, great article post. Keep writing.

  24. It’а†s actually a cool and helpful piece of info. I am happy that you just shared this helpful information with us. Please stay us up to date like this. Thanks for sharing.

  25. “We will have a hyperlink alternate contract among us”

  26. It as really a cool and useful piece of information. I am glad that you shared this helpful information with us. Please keep us up to date like this. Thanks for sharing.

  27. I appreciate you sharing this blog article.Much thanks again. Want more.

  28. you ave got an amazing blog right here! would you like to make some invite posts on my weblog?

  29. It is best to take part in a contest for among the best blogs on the web. I all recommend this site!

  30. I value the post.Really thank you! Will read on

  31. This website has got some extremely useful stuff on it! Thanks for sharing it with me!

  32. Hey, thanks for the article post.Really looking forward to read more. Cool.

  33. It as great that you are getting ideas from this piece of writing as well as from our discussion made at this time.

  34. Wow, incredible blog layout! How long have you been blogging for? you made blogging look easy. The overall look of your web site is wonderful, let alone the content!

  35. You must take part in a contest for among the finest blogs on the web. I all advocate this website!

  36. The Birch of the Shadow I feel there could be considered a couple duplicates, but an exceedingly handy listing! I have tweeted this. A lot of thanks for sharing!

  37. Thanks for sharing, this is a fantastic blog article.Really thank you! Want more. this link

  38. I view something really special in this website.

  39. location where the hold placed for up to ten working days

  40. This unique blog is obviously interesting additionally diverting. I have discovered helluva useful tips out of it. I ad love to come back every once in a while. Thanks a lot!

  41. Thank you for your blog.Much thanks again. Really Cool.

  42. I really enjoy the article. Great.

  43. Greetings, good web site you have there.

  44. Great, thanks for sharing this article post.Thanks Again. Fantastic.

  45. Thanks for sharing this superb site.

  46. Im thankful for the post.Thanks Again. Want more.

Comments -49 - 0 of 47First« PrevNext »Last

Leave a Reply