1. Be able to define
the following terms and give examples where appropriate:
| life cycle | sexual reproduction | genome | asexual reproduction | chromosomes |
| cell division | binary fission | chromatin | sister chromatids | centromere |
| cell cycle | interphase | mitosis | cytokinesis | mitotic (M) phase |
| prophase | metaphase | anaphase | telophase | mitotic spindle |
| centrosomes (MTOC) | cleavage furrow | cell plate | anchorage dependence | density-dependent inhibition |
| growth factor | cancer cells | tumor | benign tumor | malignant tumor |
| metastasis | carcinomas | sarcomas | leukemias | lymphomas |
| somatic cell | homologous chromosomes | locus | autosomes | sex chromosomes |
| diploid cell | gamete | haploid cell | fertilization | zygote |
| meiosis | crossing over | chiasma | genetic recombination | karyotype |
| trisomy 21 | Down syndrome | nondisjunction | deletion | duplication |
| inversion | translocation |
2. What is the difference
between sexual reproduction and asexual reproduction?
3. Be able to describe
how bacteria divide. What is a clone?
4. Understand the
structure of DNA in eukaryotic cells, both when the cell is in interphase,
and when the cell is dividing? Why does the DNA look different at
these different times in the cell's life cycle? Understand how (and
when) sister chromatids are formed, and how sister chromatids are related
to one another.
5. Understand the
cell cycle. Be able to draw the cell cycle, correctly placing G1,
S, G2, and M phases. Which three phases are found in interphase?
What can M phase be divided into? Make sure you know where the three
major checkpoints in the cell cycle are, and what the cell does when it
gets to a checkpoint.
6. Fully understand
the diagram on pages 132-133. If I tell you that a cell has a diploid
number of 6, you should be able to draw all of the stages for that cell.
Know what happens in the cell during each phase (when is the spindle formed,
etc.). Understand the differences in cytokinesis in plant and animal
cells.
7. What are some of
the characteristics that normal, healthy cells grown in tissue culture
exhibit? How are growth factors important?
8. How do cancer cells
differ from normal cells? What do all cancer cells have in common?
9. Understand the
relationship between homologous chromosomes. Where does each member
of the pair originate from? What is meiosis?
10. Fully understand
the diagram on pages 140-141. If I tell you that a cell has a diploid
number of 6, you should be able to draw all stages for that cell.
know what happens in the cell during each phase of meiosis I and meiosis
II.
11. Make sure that
you understand how genetic variation arises from independent orientation
of chromosomes in meiosis, from random fertilization, and from crossing
over. Explain what crossing over is and how it leads to genetic variation.
Draw a diagram to explain.
12. What is a karyotype?
What is nondisjunction? Explain how nondisjunction can lead to abnormal
chromosome numbers. What are some different abnormalities of chromosome
number in humans?
13. Explain the different
alterations in chromosome structure, and how they can cause birth defects
and cancer.