BIO Unit 3
Card Set Information
BIO Unit 3
Cell Cycle Mitosis
What is Interphase?
The active preparation for cell division
What are the phases of Mitosis in order?
Prophase, Metaphase, Anaphase, and Telophase
How does a cell prepare for cell division?
Increases its size and makes a copy of its' DNA
What does G1 stand for in interphase stage of the cell cycle?
Gap 1 or presynthesis
What does S stand for in interphase stage of the cell cycle?
What does G2 stand for in the interphase stage of the cell cycle?
Gap 2 or postsynthesis
What does the M stand for in the cell cycle?
Mitotic division phase
What type of cell does NOT have centrosomes?
What disappears during Prophase?
What disappears at the end of Prophase?
How many chromosomes are in the human cell?
46 (23 pairs)
What type of reproduction is mitosis?
What type of reproduction is meiosis?
What does G0 indicate in the cell cycle?
cell activity that only occurs in G1
What is the central area where 2 chromatid sisters connect to form 1 chromosome?
What is Cytokinesis?
The division of everything else in the cell
How many chromosomes does an egg and sperm each have?
How does an aster form?
Microtubules extend from the centrosomes radially to form an aster
During what stage of mitosis do spindle fiber attach to the kinetochores of the chromosomes?
During what stage of mitosis do chromatids seperate at their centromeres?
During what stage of mitosis does 1 group of chromosomes move toward each pole?
During what stage of mitosis does the nuclei reform and cell division is complete as cytokinesis produces 2 daughter cells?
During Interphase, what is the only difference between daughter cells and the parent cells?
It is smaller in size
During what stage of mitosis do chromosomes line up along the equatorial plane of the cell?
During what stage of mitosis do spindles form between the centrioles which have moved to the poles of the cell?
During what stage of mitosis do chromosomes continue to shorten and thicken?
During what stage of mitosis do long thread-like bodies of chromatin become evident and begin to condense as visible chromosomes?
What period of Interphase are chromosomes replicated?
What are the phases of Interphase in order?
Mitotic Division (M),Presynthesis (G1), Synthesis (S), and Postsynthesis (G2)
The timing of the cell cycle in eukaryotic cells is controlled by a group of closely related proteins called what?
What is the period of Interphase in which DNA replication is completed and the cell is ready to begin the process of cell division?
Are there tetrads in mitosis?
What are polar fibers?
Spindle microtubules that extend from 2 poles of a dividing cell
What is another word for a non-sex cell?
What kind of cells make up most of the cells in the human body?
Somatic cells (Non-sex cells)
During what stage of the cell cycle are protein tublin produced?
What is the purpose of mitosis?
To turn dyads into unduplicated DNA
What is kinetochore?
protein found in chromatid that attach to microtubules
What is binary fission?
The process in which prokaryotic cells reproduce asexually
In animal cells, cytokineses is carried out through what?
In plant cells, cytokinesis is carried out through what?
If their are 12 chromatids, how many diploids are there?