Biology ch 8
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Created by:
mbrollier45 on November 9, 2011
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30 terms
Terms | Definitions |
|---|---|
 auto | self |
| hetero | different |
| homo | same |
| soma | body |
| meta | middle |
| chromo | color |
| tetra | four |
| a- | not |
| histones | small proteins |
| cancer | disease of the cell cycle |
| tumor | abnormal amount of cells in the tissue |
| gamete | sex cells (egg and sperm) |
| diploid cell | containing two sets of chromosomes |
| fertilization | union of sperm cell and an egg cell |
| zygote | fertilized egg |
| karyotype | metaphase chromosomes of cell arranged by size and centromere type |
| male | XY |
| female | XX |
| autosomes | a chromosome not directly involved in determining the sex of an organism |
| crossing over | exchange of segments between chromatids of homologous chromosomes during prophase I of meiosis |
| Recombinant chromosome | new combination of new information |
| nondisjunction | an accident of meiosis or mitosis in which a pair of homologous chromosomes or a pair of sister chromatids fail to separate at anaphase |
| Down Syndrome | 3 chromosomes in 21 spot |
| Climefelters | XXY |
| Turners | XO |
| homologous chromosomes | similar genetics in the chromosomes |
| benign | do not spread and remain at original site |
| malignant | can spread into tissues near by |
| sister chromatids | chromosomes that have identical genes |
| centromere | joins together sister chromatids |
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