{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Worksheet+13 - Bio 93 Worksheet 13 Lecture 25 and 26 Pooja...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Bio 93 Pooja Patel Worksheet 13 – Lecture 25 and 26 [email protected] Lecture 25 and 26: Vertebrate Development Stages in Embryonic Development o ____________________: fusion of sperm and egg nuclei and cell activation Purpose: to bring haploid nuclei of sperm and egg together to form diploid zygote Problems: o Fertilization by sperm from another species o Fertilization by more than one sperm Solutions o ____________________ reaction: Necessary for sperm to penetrate into egg Triggered by binding of receptors on sperm surface to those on egg o ____________________ reaction Started when sperm and egg fuse Prevents additional sperm penetration and starts metabolic reactions that initiate embryonic development Rise in _____ in egg’s cytosol o ____________________: rapid cell division without growth in size to generate a multicellular embryo Divide cytoplasm of zygote into many smaller cells called ____________________ Influenced by amount of yolk in eggs (influences gastrulation) Blastula is formed: clump of cells with ____________________ (fluid filled space) o
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
Image of page 2
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