Guide questions to help you review for the LT on Thurs/Fri this week.
- Enumerate the roles of cell division.
- Flowchart the events in the G1, S, G2, and M phases of cell cycle.
- Differentiate between the following: centromere, centrioles, centrosomes; chromatin and chromosomes; sister chromatids and daughter chromosomes; interphase, mitosis, cytokinesis.
- Differentiate mitosis in a plant cell from mitosis in an animal cell.
- Describe the G1, G2, and Spindle assembly checkpoints.
- Describe five factors that control the cell cycle.
- Describe the behavior of cancer cells.
- Enumerate the causes of, and therapies for cancer.
- Justify the need for meiosis.
- Flowchart the events in the different stages of meiosis.
- Enumerate 5 differences between mitosis and meiosis.
- Explain how meiosis contributes to variation among individuals.
- Represent the similarities and differences between spermatogenesis and oogenesis in a Venn diagram.
- Explain how errors in cell division may result in aneuploidy or polyploidy.
Presentation available in the Downloads tab.
Meiosis square dance
Some animations on later lessons:
- Meiosis (overview)
- Stages of meiosis
- Unique features of meiosis
- Independent assortment during meiosis
- Comparison of mitosis and meiosis
- Comparison of mitosis and meiosis (shown in class)
- Nondisjunction at meiosis I
Bingo term descriptions:
- Condition in which individuals lack one chromosome
- Condition in which the cells contain extra sets of chromosomes as in the endosperm of seeds.
- Ends of chromosomes that erode each time the cell divides.
- Exchange of DNA between homologous chromosomes.
- First haploid cell formed during spermatogenesis.
- Form of asexual reproduction in prokaryotes.
- Form that DNA and proteins takes during interphase.
- Form that DNA takes in prophase and metaphase of mitosis.
- Forms in your cells during cytokinesis.
- Half of a duplicated chromosome.
- Homologous chromosomes align at the metaphase plate.
- Increases the rate of getting cervical cancer.
- Much-reduced product of meiosis in oogenesis that degenerates after some time.
- Pairing up of homologous chromosomes
- Point of attachment of two sister chromatids in a duplicated chromosome.
- Points of connection at which crossing-over occurs.
- Primary oocytes are arrested in this stage until puberty.
- Process by which spermatids become spermatozoa.
- Proteins that can transfer phosphate groups from ATP to other proteins and activate them.
- Proteins whose concentrations rise and fall throughout the cell cycle.
- Reason behind Down syndrome and metafemale syndrome
- Secondary oocytes are arrested at this stage until fertilization.
- Source of genetic variation that occurs during metaphase I of meiosis.
- Specific sex cell present in girls from birth until puberty.
- Spread of cancer cells throughout the body.
- Stage at which the genetic material doubles.
- Stimulates mitosis by facilitating the binding of regulatory proteins.
- Stimulation of white blood cells to defeat cancer cells.
- Structures that are completely duplicated by the end of the G2 phase.
- You have 22 pairs of these in your neurons.