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Mitosis & Meiosis
Honors Biology
39
Biology
9th Grade
12/06/2011

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Term
[Blank] is the formation of new individuals.
Definition
Reproduction
Term
For single-celled organisms, cell division is a form of [blank] reproduction.
Definition
Asexual
Term
Most multicellular organisms reproduce by [blank] reproduction.
Definition
Sexual
Term
Cells carry genetic information in packages of DNA called [blank].
Definition
Chromosomes
Term
Most [blank] have only one circular strand of DNA.
Definition
Prokaryotes
Term
In eukaryotic cells, the genetic structure consists of DNA and a tightly wound protein, which together form a substance called [blank].
Definition
Chromatin
Term
The beadlike structures formed by DNA wrapped around [blank] molecules are called nucleosomes.
Definition
Histone
Term
[Blank] make it possible the precise separation of DNA during cell division.
Definition
Chromosomes
Term
What is the name of the type of cell division that occurs in the prokaryotic cell cycle?
Definition
Binary Fusion
Term
What happens during interphase?
Definition
Cell Growth (G1), DNA Replication (S), Preparing for Cell Division (G2)
Term
Cell Cycle
Definition
http://faculty.cbu.ca/cglogowski/BIOL%20101%20IMAGES/CellCycle_L.jpg+
Term
In eukaryotic cells, what happens in the G1 phase that differs from the G2 phase?
Definition
G1 is cell growth, G2 cell gets ready for mitosis.
Term
In eukaryotic cells, what are the two main stages of cell division?
Definition
Mitosis and cytokinesis
Term
During prophase, when cell chromosomes become visible, what are the duplicated strands of DNA called? What is the name for the area in which these duplicated strands are joined?
Definition
Sister Chromatids/Centromere
Term
What structures are spindle fibers attached to that help pull the paired chromosomes apart?
Definition
Centrioles
Term
The chromosomes separate and begin to move to opposite sides of the cell.
Definition
Anaphase
Term
The chromosomes become visible. The centrioles take up positions on opposite sides of the nucleus.
Definition
Prophase
Term
A nuclear envelope re-forms around each cluster of chromosomes. The nucleolus becomes visible in each daughter nucleus.
Definition
Telophase
Term
The chromosomes line up across the center of the cell.
Definition
Metaphase
Term
Chromosomes going through mitosis.
Definition
http://3.bp.blogspot.com/-rWjZUOFAplA/TltmCAckHVI/AAAAAAAAAFg/sHV2JTkxxDY/s1600/Mitosis.gif
Term
What is cytokinesis?
Definition
The division of the cytoplasm.
Term
Cells tend to [continue] dividing when they come into contact with other cells.
Definition
Stop
Term
Cell division [speeds up] when the healing process nears completion.
Definition
Slows
Term
Proteins called [growth factors] regulate the timing of the cell cycle in eukaryotic cells.
Definition
Cyclins
Term
If chromosomes have not attached to spindle fibers during metaphase, an [internal] regulatory protein will prevent the cell from entering anaphase.
Definition
True
Term
Growth factors are external regulatory proteins that [slow down] the cell cycle.
Definition
Speed up
Term
Once apoptosis is triggered, a cell proceeds to [self-destruct]
Definition
True
Term
Cyclins
Definition
Regulates the cell cycle
Term
Internal regulatory proteins
Definition
Respond to events occurring inside a cell
Term
External regulatory proteins
Definition
Stimulate the growth and division of cells
Term
What is cancer?
Definition
A disorder in which body cells lose the ability to control growth, is one such example.
Term
What are the two basic types of tumors? Explain how they are different.
Definition
Benign - Non-cancerous
Malignant - Cancerous
Term
Why can cancer be life threatening?
Definition
They absorb nutrients needed by other cells, block nerve connections, and prevent the organs they invade from functioning properly.
Term
What is the cause of cancer?
Definition
Defects in the genes that regulate cell growth and division.
Term
How do radiation and chemotherapy affect cancer cells?
Definition
They target the cancer cells and destroy them.
Term
Cancer cells do not respond to signals that regulate cell [blank].
Definition
Growth
Term
Cancer cells form a mass of cells called a [blank].
Definition
Tumor
Term
Cancer cells may break loose and [blank] throughout the body.
Definition
Spread
Term
Cancer cells form tumors in other tissues by [blank].
Definition
Cell division
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