{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

04 mitosis - Figure 12.6 The mitotic spindle at metaphase...

Info icon This preview shows pages 1–24. Sign up to view the full content.

View Full Document Right Arrow Icon
Figure 12.0 Mitosis
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
Figure 12.1a The functions of cell division: Reproduction
Image of page 2
Figure 12.1b The functions of cell division: Growth and development
Image of page 3

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

View Full Document Right Arrow Icon
Figure 12.1c The functions of cell division: Tissue renewal
Image of page 4
Figure 12.2 Eukaryotic chomosomes
Image of page 5

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

View Full Document Right Arrow Icon
Today’s Topics Eukaryotic Cell Cycle The mitotic apparatus
Image of page 6
Two main types of cells prokaryotic (~ 1 µm) eukaryotic (~50 µm)
Image of page 7

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

View Full Document Right Arrow Icon
Events of Cell Division Reproductive signal DNA replication Segregation of DNA Cytokinesis: separation of the new cells
Image of page 8
Basics Prokaryotic cells divide by binary fission but eukaryotic cells have a cell cycle consisting of three “stages” : interphase, mitosis, and cytokinesis.
Image of page 9

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

View Full Document Right Arrow Icon
Image of page 10
In eukaryotes, chromosome duplication and distribution occurs Chromatin fibers: DNA and proteins (S phase)
Image of page 11

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

View Full Document Right Arrow Icon
The cell cycle
Image of page 12
Image of page 13

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

View Full Document Right Arrow Icon
Image of page 14
Image of page 15

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

View Full Document Right Arrow Icon
The Mitotic Spindle
Image of page 16
Image of page 17

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

View Full Document Right Arrow Icon
Image of page 18
Image of page 19

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

View Full Document Right Arrow Icon
Image of page 20
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Figure 12.6 The mitotic spindle at metaphase Possible Mechanisms for Chromosome Movement (cytoplasmic dynein) Chromosomes move at about 1 µm per minute (very slow!) Cell Division • Mitosis: division of the nucleus • Cytokinesis: division of the cytoplasm Golgi derived vesicles Cytokinesis in animal and plant cells Actin and myosin Sea Urchin Egg Plant Cells vesicles Practice • Use “props” for 2n=4. • Without your notes use a piece of paper and pen (or other props) to demonstrate your knowledge of an animal cell (2n = 4) undergoing division: – interphase, prophase, metaphase, anaphase, telophase, cytokinesis – homologous chromosome – sister chromatids – mitotic spindle, centrioles, centrosome, centromere, kinetochore...
View Full 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