Module 3- Cell Division

Cell Division

multiplication of cells for growth and development; plays a key role in repairing injured body parts of animals

Interphase

cell undergoes growth and prepares for cell division; comprises 90% of the cycle; microtubule proteins are synthesized at this stage ; actual replication of DNA occurs

Mitosis phase

comprises 10% of the cell cycle

Interphase

intact nuclear membrane.

Chromatin Fibers

genetic materials inside the nucleus appearing as thin, thread like structures

Nucleoli

dark dense stained bodies inside the nucles that serves as chromosomal materials

Centrosome

near the nucleus, contains the centrioles

M-Phase

consist of Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

Prophase

nuclear membrane starting to disintergrate. Chromatin fibers are coiled, thickened, condensed. Centrioles are seen in opposite poles. Nucleoli disappears.

Asters

ray-like microtubule bodies radiating around each centriole

Mitotic spindles

forming between centrioles

Metaphase

cells are aligned at the equatorial region. replicated chromosomes are shorter and condensed (sister chromatids). joined together at the central region called centromere.

Kinetochores

protein complexes to which the spindle fibers are attached to

Anapahase

sister chromatids are separated and pulled apart toward opposite poles

Telophase

cleavage furrow exist. the nuclear membrane and nucleolus start to reappear. chromosomes uncoil and assume threadlike appearance. asters and mitotic spindles disappear.

Cytokinesis

division of cytoplasm. completely separated daughter cells are formed

Anaphase, Chromatid

what is the phase of the cell? What does the pointer point to?

Metaphase, Asters, Chromosomes at Equitorial Plane

What is the phase of the cell? What do the pointers point to?

Telophase, Sprout Sister ChromatidÍ, Cleavage Furrow

What is the phase of the cell? What do the pointers point to?

Interphase, Nucleus

What is the phase of the cell? What do the pointers point to?

Prophase, Chromosome

What is the phase of the cell? What do the pointers point to?

Cytokinesis

What is the phase of the cell?

Chromatin

thread-like structures composed of DNA and proteins. These proteins are called histones enveloped by thread-like structures

Chromosomes

where the genetic material is found. interchangeably used as sister chromatids

Chromatids

condensed version of chromatin. considered as one side of chromosome joined by a centromere