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Te'Angela Biology

Biology Science Terms chapter 5

QuestionAnswer
Cell Cycle The regular pattern of growth, DNA replication,and cell division that occurs in the eukaryotic cell.
Mitosis The division of the cell necleus and its content.
Cytokinesis The process that divides the cells cytoplasm.
Chromosomes One long continuous thread of DNA that consists of numerous genes along with regulatory information.
Histone Each chromosome is associated with a group of protiens.
Chromatin The loose combination of of DNA and protiens.
Chromatid One half of a duplicated chromosome.
Centromere A region of the condensed chromosome that looks pinched.
Telomere The ends of DNA mlecules form structures, which are made of repeating nucleotides that do not form genes.
Prophase The first phase of Mitosis when a chromatid condenses, the neculear envelope breaks down, the necleolus disappears, and the centrosomes and centrioles migrate to opposite sides of the cell.
Metaphase The second phase of mitosis when spindle fibers align the chromosomes along the cell equator.
Anaphase Third phase of mitosis during which chromatids separate and are pulled to opposite sides of the cell.
Telophase Last phase of Mitosis when a complete set of identical chromosomes is a positioned at each pole of the cell, the nuclear membranes start to form, the chromosomes start to uncoil, and the spindle fibers disassemble.
Growth Factor broad group of protiens that stimulate cell division.
Apoptosis Programed cell death
Cancer Common name for class diseases characterized by uncontrolled cell division.
Benign Having no dangerous effect on health, especially referring to an abnormal growth of cells that aren not cancerous
Maligant cancerous tumor in which cells break away and spread to other parts of the body, causing harm to the organisms health.
Metastasize To spread by transferring a disease-causing agent from the site of the disease to other parts of the body
Carcinogen Substance that produces or promotes the devolpement of cancer.
Created by: tconey
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