Cell Cycle & Meiosis Objectives

Cell Cycle & Mitosis Objectives

_________CMM 1. Outline the stages in the cell cycle, including interphase (G1, S, G2), mitosis and cytokinesis. ___

_________CMM 2. State that tumors (cancers) are the result of uncontrolled cell division and that these can occur in any organ or tissue. ____

_________CMM 3. State that interphase is an active period in the life of a cell when many metabolic reactions occur, including protein synthesis, DNA replication and an increase in the number of mitochondria and/or chloroplasts. ___

_________CMM 4. Describe the events that occur in the four phases of mitosis (prophase, metaphase, anaphase and telophase). ____

_________CMM 5. Explain how mitosis produces two genetically identical nuclei. ____

_________CMM 6. State that growth, embryonic development, tissue repair and asexual reproduction involve mitosis. _____ Meiosis Objectives _________CMM 7. State that meiosis is a reduction division of a diploid nucleus to form haploid nuclei. ______ _________CMM 8. Define homologous chromosomes. _____ _________CMM 9. Outline the process of meiosis, including pairing of homologous chromosomes and crossing over, followed by two divisions, which results in four haploid cells. _______ _________CMM 10. Explain that non-disjunction can lead to changes in chromosome number, illustrated by reference to Down syndrome (trisomy 21). ________ _________CMM 11. State that, in karyotyping, chromosomes are arranged in pairs according to their size and structure. _____ _________CMM 12. State that karyotyping is performed using cells collected by chorionic villus sampling or amniocentesis, for pre-natal diagnosis of chromosome abnormalities. _____ _________CMM 13. Analyze a human karyotype to determine gender and whether non- disjunction has occurred. ______