Lab8_OCON - Caroline OConnor Cell Physiology Lab 8 T.A...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Caroline O’Connor Cell Physiology Lab 8 T.A. James Peterson Title: Onion Root Mitosis 1.) The phase that appeared to be the longest was interphase, during which we observed the largest number of cells. The cells were characterized by an intact nuclear membrane, absence of a mitotic spindle, and diffuse chromatin. The phase that appeared to be the shorted was telophase, during which we observed the smallest number of cells. The cells in telophase had their chromosomes at almost opposite ends of the cell, and a cleavage furrow was evident between the chromosomes. 2.) As we moved from the apical meristem to the zone of elongation, the mitotic index decreased. The root cap typically contains few mitotic cells due to damage. The apical meristem is the portion of the root that is undergoing active mitosis, has the most cells undergoing mitosis, and has the highest mitotic index. The zone of elongation contains the newly formed cells that are greater and size and length. Therefore, the decrease in mitotic index observed in lab was consistent with predictions.
Image of page 1
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