Term
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Definition
| One Parent Produces Identical Offspring |
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Term
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Definition
| 2 parents produce offspring that exhibit variation |
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Term
| Prokaryotic cells produce by...? |
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Definition
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Term
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Definition
| When DNA replicates & then splits in two |
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Term
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Definition
| Sequence of orderly events in a life of a cell |
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Term
| Interphase (90%) Eukarytic cell spend most of their most of cycle |
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Definition
| A stage in the cell cycle when a cell doubles its cytoplasm and synthesizes DNA |
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Term
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Definition
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Term
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Definition
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Term
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Definition
Preparation for cell divison
- organelle production |
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Term
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Definition
| Replication of the Nucleus |
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Term
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Definition
- Chromatids Visible
- Nuclear membrane disappear
- Nucleoli disappear
- Mitotic spindle begins to form |
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Term
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Definition
-Tetrads formed by synapsis of hologous chromosomes (crossing over occurs)
-Homologous chromosomes come together |
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Term
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Definition
-Chromatids attached to spindle and lined up at center of cell (ex:)
ii
ii
ii
ii |
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Term
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Definition
Tetrads align at the metaphase plate (middle of the cell)
ex:
iiii
iiii |
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Term
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Definition
-Chromatids(sister) pull apart
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Term
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Definition
Homologous chromosomes separate
-Sister chromatids remain together |
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Term
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Definition
-Chromatids not visisble
- Membrane reappears
-nucleoli reappear
-opposite of prophase...
-have two diploid cells (2n) |
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Term
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Definition
-No more chromosome replication
-have 4 haploid cells (n n n n)
- chomosomes have many possibilities from parents; have genes from both mom and dad. |
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Term
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Definition
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Term
| Cytokinesis in animal cell |
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Definition
| -elements of cytoskeleton "pinch" the cell in two cleavage furrow forms |
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Term
| Cytokinesis in Plant Cell |
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Definition
| Vesicles containing cell wall material line up at center of the cell forming a new cell wall. |
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Term
| What cells tend not to replicate? |
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Definition
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Term
| Mitosis is necessary for...? |
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Definition
1.) Growth
2.) Asexual reproduction
3.) Repair (replace)
4.) Regeneration of body parts |
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Term
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Definition
-Proteins that regulate cell cycle
- Some serve as checkpoints in cell cycle
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Term
| Density Dependent Inhibition |
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Definition
- Cells tend to divide until "space" is filled in
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Term
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Definition
| -Cells dividing out of control |
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Term
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Definition
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Term
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Definition
| - Tends to metastasize (spead disease or defective cells) |
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Term
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Definition
| - Usually encapsulated & tend not to metastasize |
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Term
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Definition
- stops cell division
ex:
1. radiation
2. chemo
3. surgery |
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Term
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Definition
| - cancer of the epithelial tissue (skin) |
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Term
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Definition
| - Cancer of connective tissue (bones) |
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Term
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Definition
| - cancer of lymph system (lymphnodes) |
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Term
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Definition
| - cancer of white blood cells |
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Term
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Definition
| - carry the same trait at the same location |
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Term
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Definition
| - full set of genetic material (from both parents) |
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Term
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Definition
-Half of adult genetic material
-found in gametes(sex cells) |
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Term
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Definition
- production of gametes (sex cells)
-Reduction Division |
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Term
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Definition
| Sections of homlogous chromatids overlap, break off, & exchange places |
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Term
| 3 reasons for variation in sexual Reproduction: |
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Definition
1.) Crossing Over
2.) Independent Orientation at Metaphase
3.) Random Fertilization |
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Term
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Definition
| - failure of chromosomes or chromatids to separate during meiosis |
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Term
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Definition
| Loss of a chromosome segement |
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Definition
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