Mitosis & Meiosis Test Review (Student Copy)
Terms in this set (29)
What are the 3 phases of INTERPHASE in order?
Gap 1, Synthesis, and Gap 2
What occurs during S phase of INTERPHASE?
Replication of DNA and centromeres
What are the phases of MITOSIS in order?
Prophase, Metaphase, Anaphase, Telophase.
What are the phases of MEIOSIS?
Prophase 1, Metaphase 1, Anaphase 1, Telophase 1, Prophase 2, Metaphase 2, Anaphase 2, Telophase 2.
Remember PMAT Twice
What is the phase before MITOSIS and MEIOSIS where the cell are doing their normal function?
What is the difference between telophase and cytokinesis?
In TELOPHASE the daughter cells are still connected while in CYTOKINESIS the daughter cells are fully seperated
What is the advantages of sexual reproduction over asexual reproduction? *
Sexual reproduction increases of genetic variation
Mitosis is classified as asexual or sexual reproduction?
Remember Mitosis results in 2 identical diploid cells that have no genetic variation from the mother cell.
Meiosis is classified as asexual or sexual reproduction?
Remember Meiosis results in 4 haploid sex cells or gametes. These sex cells have genetic variation from the original mother cell.
Organisms produce new cells by either mitosis or meiosis. How do cells produced by mitosis differ from cells produced by meiosis?
Mitosis produces cells that differ genetically from the parent cell.
When carcinogens cause a failure in the regulation of cell growth and development, what condition might occur?
Cancer- uncontrolled cell growth
True or False. Mitosis results in 2 identical haploid cells
Mitosis results in 2 identical DIPLOID cells
True or False. Mitosis involves homologous chromosomes.
Meiosis involves homologous chromosomes for crossing over and increasing genetic variation. Mitosis does not.
True or False. Sex cells undergo mitosis
Meiosis involves sex cells while mitosis involves body cells.
Sex cells are also known as...
What phase in the CELL CYCLE are cell in the majority of the time?
Mitosis results in how many cells?
2 diploid cells that are genetically identical to the parent cell
Meiosis results in how many cells?
4 haploid sex cells that differ genetically from the parent cell.
What occurs during Prophase of Mitosis?
1. nuclear envelope disappears
2. DNA condenses into chromosome form
3. Centromeres begin to move to opposite sides of the cell and extend spindle fibers
What occurs during Metaphase of Mitosis?
the spindle fibers start to align the chromosomes in the middle of the cell
What occurs during Anaphase of Mitosis?
spindle fibers start to pull apart the sister chromatids and move them to the opposite sides of the cell
What occurs during the Telophase of Mitosis?
1. chromatids now arrive at their opposite ends of the cell 2. new nuclear envelope starts to form around the two daughter chromatids.
3. chromosomes start to disperse and become less visible.
What occurs during Prophase 1 of Meiosis?
1. Nuclear envelope disappears
2. Chromosomes condense
3. Crossing over occurs
4. Homologous chromosomes pair up together
What event needs to occur in Interphase before Mitosis or Meiosis?
DNA replication in S phase
How does a cell in Prophase look?
How does a cell in Metaphase look?
How does a cell in Anaphase look?
How does a cell in Telophase look?
How does a cell in Cytokineses look?
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