Friday, February 1, 2013

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. ______

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