Term
| In order for eukaryote cell to reproduce its self, it must duplicate its and distribute that to the resulting daughter cells. |
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Definition
| In order for eukaryote cell to reproduce its self, it must duplicate its DNA and distribute that DNA to the resulting daughter cells. |
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Term
| What is the most common kind of cell division? |
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Definition
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Term
| Mitosis is a type of cell division by which a diploid somatic cell its DNA and once to produce two genetically identical diploid daughter cells. |
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Definition
| Mitosis is a type of cell division by which a diploid somatic cell duplicates its DNA and divides once to produce two genetically identical diploid daughter cells. |
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Term
| In complex organisms, mitosis is predominantly used for and . |
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Definition
| In complex organisms, mitosis is predominantly used for tissue growth and tissue repair. |
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Term
| A cell that contains two complete sets of homologous chromosomes. |
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Definition
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Term
| Chromosomes that have the same size, the same shape, and carry genes for the same trait. |
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Definition
| What is homologous chromosomes? |
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Term
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Definition
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Term
Cells primary in your body.
(Example: skin cells, muscle cells) |
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Definition
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Term
In each one of the somatic cells there are pairs of homologous chromosomes.
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Definition
| In each one of our somatic cells we have 23 pairs of homologous chromosomes. |
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Term
| Cells that contain only one member of any pair of of homologous chromosomes. |
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Definition
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Term
| What is the human being's diploid number? |
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Definition
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Term
| Orderly sequence of events that describes the life of a (eukaryote) cell. |
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Definition
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Term
| Occurs between successive divisions. A cell divides into two cells each of these repeats this process. |
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Definition
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Term
| During this phase the cell duplicates its organelles, synthesizes proteins (related to molecular genetics), when most of the cell growth occurs, and when cell carries out metabolic activities. |
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Definition
| What is the first "Gap" phase (G1)? |
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Term
| How many hours does a typical somatic cell spend in the first "Gap" phase? |
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Definition
| A Typical somatic cell spend 8 to 10 hours in G1. |
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Term
| During this phase the DNA molecules are replicated in order to produce two identical copies of DNA. |
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Definition
| What is the "Synthesis" stage (S)? |
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Term
| A Typical somatic cell spend to hours in S |
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Definition
| A typical somatic cell spends 6 to 8 hours in S |
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Term
| During this phase cell growth continues, the specific proteins that are needed for cell division get synthesized, and the centrioles are replicated. |
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Definition
| What is the second "Gap" phase (G2)? |
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Term
| A typical somatic cell is going to spend to hours in G2. |
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Definition
| A typical somatic cell is going to spend 4 to 6 hours in G2. |
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Term
| What is the total number of hours that is takes a somatic cell to go through interphase? |
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Definition
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Term
| Nuclear division followed by the division of cytoplasm. |
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Definition
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Term
| How many sequential stages does the division of the nucleus require? |
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Definition
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Term
True or False?
The length of the cell cycle varies greatly from one cell type to another. |
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Definition
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Term
| Some cells like stomach cells will divide . |
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Definition
| Some cell like skin cells will divide continuously. |
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Term
TRUE or FALSE?
All cells will divide very quickly. Only if the organ is damaged does the rate of division slow down. |
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Definition
FALSE
Other cells will divide very slowly. Only if the organ is damaged does the rate quicken.
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Term
| Some cells lose their ability . |
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Definition
| Some cells such as nerve cells and heart mucsles that lose thier ability to divide. |
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Term
Review of examples of cell division.
Give examples for each of the three "rates." |
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Definition
- stomach and skin cell divide rapidly
- bone and cartilage cells divide slowly
- skeletal mucle cells and nerve cells do not divide at all.
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Term
| The first phase in mitosis. |
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Definition
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Term
| How many major events take place in prophase? |
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Definition
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Term
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Definition
In prophase:
-
chromatin in the nucleus condenses
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the nuclear membrane starts to disintegrate
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nucleoli disappear
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pairs of centrioles migrate toward opposite poles of the cell
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Term
| Each consists of a pair of identical that are joined at the centromere. |
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Definition
| Each chromosome consists of a pair of identical chromatidsthat are joined at the centromere. |
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Term
| The second stage of mitosis. |
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Definition
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Term
| How many major events occur in prometaphase? |
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Definition
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Term
| In one of the major events in prometaphase, the form the . |
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Definition
| In one of the major events in prometaphase, the microtubules form a spindle apparatus. |
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Term
True or False?
The spindle apparatus has fibers that attach one identical chromatid to one pole of the cell and the other identical chromatid to the opposite pole of the cell? |
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Definition
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Term
| The third stage of mitosis, when the chromosomes line up randomly. |
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Definition
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Term
| The equator of the cell is known as the . |
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Definition
| The equator of the cell is known as the metaphase plate. |
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Term
In the this stage:
- contromeres split and microtubles pull the identical chromatids apart.
- Chromatids migrate toward opposite poles of the cell.
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Definition
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Term
| Once the centromeres are broken and the chromatids are pulled apart, chromatids no longer exist. What was previously referred to are chromatids are now called " " |
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Definition
| Once the centromere are broken and the chromatids are pulled apart, chromatids no longer exist. What was previously referred to are chromatids are now called "daughter chromosomes." |
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Term
| The final stage of mitosis. |
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Definition
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Term
| Telephase is essential the opposite of . |
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Definition
| Telephase is essential the opposite of prophase. |
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Term
In the first event of telophase:
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Definition
- daugher chromosomes decondense (return to the tangle mass of chromatin)
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Term
The 2nd events of telophase:
- a new forms around each tangled mass of chromatin.
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Definition
- a new nuclear envelope forms around each tangled mass of chromatin.
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Term
In the 3rd event of telophase:
- The spindle apparatus is .
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Definition
- The spindle apparatus is disassembled.
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Term
| Finally, in telophase the reappears! |
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Definition
| Finally, in telophase the nucleoli reappears! |
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Term
| How many factors are needed to initiate cell division? |
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Definition
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Term
| Sufficient is must exist to be distributed to sister cells. |
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Definition
| Sufficient cytoplasm is must exist to be distributed to sister cells. |
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Term
| DNA replication must be . |
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Definition
| DNA replication must be completed. |
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Term
| An adequate supply of must available to the cell. |
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Definition
| An adequate supply of nutrients must available to the cell. |
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Term
| Maturation promoting factor, proteins, and must be present. |
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Definition
| Maturation promoting factor, cdc2 proteins, and cyclin must be present. |
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Term
| Adjacent cells must to create space for new cells to occupy. |
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Definition
| Adjacent cells must die to create space for new cells to occupy. |
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Term
| State three factors that can halt cell division: |
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Definition
- withdrawal of nutrients or growth factors
- contact inhibitors
- cell death
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Term
| The orderly, genetically programmed death of a cell |
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Definition
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