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Monday, December 12

  1. page Mitosis, Meiosis and Cell Cycle edited ... Produce variation Need to find a partner ... than their parent parent==(Unique DNA)== …
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    Produce variation
    Need to find a partner
    ...
    than their parentparent==(Unique DNA)==
    Takes a long time to reproduce because the organism needs to find a mate
    Large chance of Evolution
    No guarantee of offspring being born
    Lineages last longer

    Advantages of Asexual Reproduction
    Disadvantages of Sexual Reproduction
    No need to find a partner
    Does not produce variation
    ...
    find a matemate==(Less steps to follow)==
    The offspring looks the same as their parents (clone)
    2. Name 3 organisms that reproduce sexually and 3 that reproduce asexually?
    (view changes)
    10:09 pm
  2. msg SCIENCE TEST message posted SCIENCE TEST ^^
    SCIENCE TEST
    ^^
    10:08 pm

Sunday, December 11

  1. page Home edited Homework 12/7 Work on Study Guide on Inspiration! - USE WIKI AS A GUIDE

    Homework 12/7
    Work on Study Guide on Inspiration!
    - USE WIKI AS A GUIDE
    (view changes)
    10:36 pm
  2. page Home edited Homework 12/7 Work on study guide Study Guide on Inspiration!! Inspiration! - USE WIKI AS …

    Homework 12/7
    Work on study guideStudy Guide on Inspiration!!Inspiration!
    - USE WIKI AS A GUIDE

    Study for QUIZZZ ^^
    GOOD LUCK PEOPLE!!!
    Genetics test :3
    (view changes)
    10:36 pm

Thursday, December 8

  1. page Home edited ... Work on study guide on Inspiration!! Study for QUIZZZ ^^ GOOD LUCK PEOPLE!!!
    ...
    Work on study guide on Inspiration!!
    Study for QUIZZZ ^^
    GOOD LUCK PEOPLE!!!
    (view changes)
    6:25 am

Tuesday, December 6

  1. page Mitosis, Meiosis and Cell Cycle edited ... http://www.youtube.com/watch?v=iCL6d0OwKt8&feature=player_embedded http://www.youtube.com…
    ...
    http://www.youtube.com/watch?v=iCL6d0OwKt8&feature=player_embedded
    http://www.youtube.com/watch?v=cvlpmmvB_m4&feature=related
    1.What are the advantages + disadvantages of both sexual and asexual reproduction?
    Sexual reproduction requires two parents to make offspring. Asexual reproduction requires only one parent to make offspring.
    Advantages of Sexual Reproduction
    Disadvantages of Sexual Reproduction
    Produce variation
    Need to find a partner
    The offspring looks different than their parent
    Takes a long time to reproduce because the organism needs to find a mate
    Advantages of Asexual Reproduction
    Disadvantages of Sexual Reproduction
    No need to find a partner
    Does not produce variation
    Fast speed because the organisms do not need to find a mate
    The offspring looks the same as their parents (clone)
    2. Name 3 organisms that reproduce sexually and 3 that reproduce asexually?
    Organisms that reproduce sexually
    Organisms that reproduce asexually
    Flower
    Sea Sponge
    Monkey
    Worms
    Insects (bees, butterfly...)
    Sea Star
    3. What is the relationship between the cell cycle, mitosis and meiosis?
    {comparison.jpg} {meiosisimagecreditnih.jpg}
    Meiosis:
    Special cellular division that produces four daughter cells
    with different combinations of genes
    and 50% of chromosomes of the parent cell.
    Mitosis:
    A stage in a cell cycle where cellular reproduction happens
    by dividing into two identical daughter cells that are genetically same as the parent cell.
    There are same number of genes and chromosomes in the nuclei of daughter cells.
    During the cell cycle, the cell grows and starts the cell division. And it divides into two cells. There are two different kinds of cell division, mitosis and meiosis. During mitosis, one copy of the DNA is distributed into each of the two daughter cells. So the daughter cell will have the same appearance with their parent cell. But during meiosis, half to form sex cells – sperm and eggs, reduces the number of chromosomes. They produce an offspring by sexual reproduction. So they have different appearance. An example of meiosis is your mother and you. Because you are produced by sexual reproduction, you have different appearance with your mother and father.
    4. What are the cell cycle and meiosis used for?
    The regular sequence of growth and division that cells undergo is known as the cell cycle. During the cell cycle, the cell division happens. The cell cycle is used for cells to grow and reproduce. The little pig gets to be big pigs because their cells grow and divide, over and over.
    If you are male, your body use meiosis to create sperm cells. If you are female, your body use meiosis to create egg cells.
    5. What is similar about the cell cycle and meiosis?
    Cell cycle and meiosis occurs for the same purpose. They both are for cell reproduction (sexual reproduction). Cell cycle and meiosis both have the process in which the cells get divided and make duplication.
    {Untitled.png}
    6. What is different about cell cycle and meiosis?
    Cell cycle is also called cell division cycle. Cell cycle contains a process called mitosis. During the meiosis process, the parents’ chromosomes are all duplicated. Then, the centromeres hold the 2 chromatids together. After that, the pairs line up in the center of the cell, and separates to move to the opposite ends of the cell. Finally, it separates into 2, and into 4. However, for the cell cycle, the cell duplicates the adult chromosomes, all of them are separated into 2, and the cell splits into 2 and no more.
    {Untitled1.png}
    Meiosis vs Mitosis
    Meiosis
    Mitosis
    Produces:
    Four haploid daughter cells
    Two diploid daughter cells
    Steps:
    The steps of meiosis are Interphase, Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II and Telophase II.
    The steps of mitosis are Interphase, Prophase, Metaphase, Anaphase, Telophase and Cytokinesis
    Discovered by:
    Oscar Hertwig
    Walther Flemming
    Genetically:
    Different
    Identical
    Cytokenesis:
    Occurs in Telophase I & Telohpase II
    Occurs in Telophase
    Number of Divisions:
    2
    1
    Pairing of Homologues:
    Yes
    No
    Type of Reproduction:
    Sexual
    Asexual
    Function:
    Sexual reproduction
    Cellular Reproduction & general growth and repair of the body
    Chromosome Number:
    Reduced by half
    Remains the same
    Karyokenesis:
    Occurs in Interphase I
    Occurs in Interphase
    Centromeres Split:
    The centromeres do not separate during anaphase I, but during anaphase II
    The centromeres split during Anaphase
    Occurrence of Crossing Over:
    Yes, Mixing of chromosomes (synapse)
    No
    Occurs in:
    Humans, animals, plants, fungi
    All organisms
    Number of Daughter Cells Produced:
    4 haploid cells
    2 diploid cells
    Creates:
    Sex cells only: Female egg cells or Male sperm cells
    Makes everything other than sex cells
    Definition:
    A type of cellular reproduction in which the number of chromosomes are reduced by half through the separation of homologous chromosomes in a diploid cell.
    A process of asexual reproduction in which the cell divides in two producing a replica, with an equal number of chromosomes in haploid cell
    Similarities:
    Chromosomes Duplicate
    Relative Positioning of chromosomes same at each stage
    Video
    Essential Questions: Compare and contrast a photocopier and a muscle cell? Compare and contrast chromosomes and playing cards?

    1.What are the advantages + disadvantages of both sexual and asexual reproduction?
    Sexual reproduction requires two parents to make offspring. Asexual reproduction requires only one parent to make offspring.
    (view changes)
    9:50 pm
  2. page Mitosis, Meiosis and Cell Cycle edited ... http://www.youtube.com/watch?v=kVMb4Js99tA http://www.youtube.com/watch?v=iCL6d0OwKt8&fea…
    ...
    http://www.youtube.com/watch?v=kVMb4Js99tA
    http://www.youtube.com/watch?v=iCL6d0OwKt8&feature=player_embedded
    http://www.youtube.com/watch?v=cvlpmmvB_m4&feature=related
    1.What are the advantages + disadvantages of both sexual and asexual reproduction?
    Sexual reproduction requires two parents to make offspring. Asexual reproduction requires only one parent to make offspring.
    (view changes)
    9:33 pm
  3. page Mitosis, Meiosis and Cell Cycle edited Essential Questions: Compare and contrast a photocopier and a muscle cell? Compare and contrast chr…
    Essential Questions: Compare and contrast a photocopier and a muscle cell? Compare and contrast chromosomes and playing cards?
    http://www.youtube.com/watch?v=kVMb4Js99tA
    http://www.youtube.com/watch?v=iCL6d0OwKt8&feature=player_embedded
    1.What are the advantages + disadvantages of both sexual and asexual reproduction?
    Sexual reproduction requires two parents to make offspring. Asexual reproduction requires only one parent to make offspring.
    (view changes)
    9:29 pm

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