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biology study guide answers

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Biology study guide answer sheet

  1. Mitosis
    1. Prophase – spindle fibers appear, chromosomes condense, nuclear envelope disappears
    2. Metaphase – chromosomes line up in middle of cell
    3. Anaphase – chromosomes separate
    4. Telophase – chromosomes unravel, nuclear envelope appears
    5. See in class
    6. Before – interphase (cell growing and DNA is copied); After – cytokinesis (final division of cell.  Forms a cleavage furrow in animal cells and a cell plate in plant cells)
    7. Helps to move the chromosomes during mitosis
    8. Mitosis is cell growth and replication.  Chromosome number is same as the parent (haploid to haploid).  Meiosis is responsible for genetic variation and the chromosome number is split in half (diploid to haploid).
    9. Crossing over of chromosomes in Prophase I
    10. Split in half
    11. Gametes/sex cells: egg and sperm
    12. Nucleotides; sugar, base, nitrogen base
    13. Adenine pairs with thymine, cytosine pairs with guanine
    14. To copy genetic information; interphase
    15. DNA to RNA to Protein
    16. All living things are made of cells, new cells come from existing cells, the cell is the basic unit of life
    17. Prokaryotic and eukaryotic; eukaryotic cells have a nucleus and membrane bound organelles, while prokaryotes do not
    18. Diffusion
    19. Active transport moves substances against the concentration gradient
    20. ATP (adenosine triphosphate); energy is released when the bond is broken between the 2nd and 3rd phosphate
    21. Observe, question, make a testable explanation, experiment, collect and analyze data, state findings
    22. Independent variable is the variable that is manipulated by the scientist.  Dependent variable changes according to the independent variable.  A control is what is used to compare results, like baseline data.
    23. Different alleles; same alleles
    24. 50
    25. 50
    26. Pure breed
    27. Living things
    28. 0
    29. It will swell
    30. 75 rose comb and 25 single comb
    31. Response to the environment; rabbit running in the rain
    32. Tt
    33. A control
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Written by Ashley Erin

May 15, 2013 at 9:29 am

Posted in Uncategorized

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