Gametogenesis - Bi Sci 001 Wednesday Announcements Lecture...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Bi Sci 001 Wednesday March 24, 1999 Announcements: Lecture notes: Gametogenesis Gametogenesis includes both gamete formation and meiosis. Gametogenesis means formation of gametes. In males it is called spermatogenesis In females, it is called oogenesis. Both of these processes are under hormonal control. Both occur in the gonads: The ovary in females, the testis in males. Results: haploid gametes sperm and egg. Spermatogenesis The "Germ cell" is called a spermatogonium (diploid) is located in the wall of the seminiferous tubule in the testis. (About 140 yards of tubule in each testis). Male primates produce sperm continuously after puberty. Spermatogonia become activated and divide by mitosis to become primary spermatocytes. (Still diploid) Meiosis I occurs to form secondary spermatocytes (haploid with duplicated DNA) Meiosis II occurs to form spermatids (haploid unduplicated DNA) The process by which spermatids become sperm (mature and mobile) is called spermiogensis.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Oogenesis Oogenesis occurs in the ovaries.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern