{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Mitotic spindle apparatus in green from the virtual

Info iconThis preview shows pages 15–27. Sign up to view the full content.

View Full Document Right Arrow Icon
Mitotic spindle apparatus in green. From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: Fluoresced cell , National Institutes of Health Prophase
Background image of page 15

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

View Full Document Right Arrow Icon
chromatin nucleolus nucleus centrioles condensing chromosomes kinetocore Prophase Q: What is a kinetocore?
Background image of page 16
chromosomes align along equator of the cell, with one kinetochore facing each pole centrioles spindle fibers chromosomes __________________ Images: Metaphase drawing , Henry Gray's Anatomy of the Human Body; Metaphase Onion Cell Drawing & Photo, Source Unknown Kinetocores not pictured in this illustration.
Background image of page 17

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

View Full Document Right Arrow Icon
_________ sister chromatids separate • spindle fibers attached to kinetochores shorten and pull chromatids towards the poles. • free spindle fibers lengthen and push poles of cell apart Images: Anaphase drawing , Henry Gray's Anatomy of the Human Body; Anaphase Onion Cell Drawing & Photo, Source Unknown From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 18
___________ • spindle fibers disintegrate • nuclear envelopes form around both groups of chromosomes •chromosomes revert to their extended state • cytokinesis occurs, enclosing each daughter nucleus into a separate cell Images: Telophase drawing , Henry Gray's Anatomy of the Human Body; Telophase Onion Cell Drawing & Photo, Source Unknown From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 19

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

View Full Document Right Arrow Icon
chromosomes decondensing nuclear envelope reforming nucleolus reappears pinching of cell membrane at equator Early Telophase Nucleolus = Small, round site within nucleus, composed of protein & RNA. Involved in ribosomal RNA synthesis & formation of ribosomes.
Background image of page 20
cytokinesis Late Telophase
Background image of page 21

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

View Full Document Right Arrow Icon
__________ – Plant vs. Animal Cell Plant cells undergo cytokinesis by forming a cell plate between the two daughter nuclei. Animal cells undergo cytokinesis through the formation of a cleavage furrow. A ring of microtubules contract, pinching the cell in half. From the Virtual Cell Biology Classroom on ScienceProfOnline.com Images: Telophase drawing , Henry Gray's Anatomy of the Human Body; Ciliate dividing , TheAlphaWolf; Telophase Onion Cell Photo, Source Unknown
Background image of page 22
Lets play… “Guess That Phase!” From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: Onion Cells Photo, Source Unknown
Background image of page 23

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

View Full Document Right Arrow Icon
Stages of Mitosis Image: Onion Cell Drawing & Photo, Source Unknown
Background image of page 24
Phases and Sub-phases of Cell Division 1. Interphase 2. Mitosis a. G1 b. S c. G2 a. Nuclear division b. Cytokinesis 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase From the Virtual Cell Biology Classroom on ScienceProfOnline.com
Background image of page 25

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

View Full Document Right Arrow Icon
Drawing and Labeling Chromosomes Sister Chromatid Replicated Uncondensed Chromosome (chromatin) Sister Chromatid Centromere Unreplicated Uncondensed Chromosome
Background image of page 26
Image of page 27
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}