Ch.12 Vocab
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Created by:
jakedorochenko on February 21, 2012
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17 terms
Terms | Definitions |
|---|---|
 Clone | An organism that is genetically identical to the organism from which it was produced. |
| Diploid | An organism or cell having two sets of chromosomes or twice the haploid number. |
| Haploid | Term used to refer to a cell that contains only a single set of chromosomes and therefore only a single set of genes. |
| Homolgous | Each of the four chromosomes from the male parent has a corresponding chromosome from the female parent. |
| Stomatic | Regulates activites that are under conscious control. |
| Meiosis | Process by which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell. |
| Spores | Single-celled reproductive bodies highly resistant to cold and heat damage; capable of new organisms. |
| Crossing Over | Process in which homologous chromosomes exchange portions of their chromatids during meiosis. |
| Polar Bodies | Cells produced in females that do not participate in reproduction. |
| Conjugation | The process in which a unicellular organism transfers some of its genetic material to another unicellular organism |
| Altenation of Generations | Life cycle that includes sexual and asexual forms. |
| Pollen | Tiny particles produced by seed plants that contain the cells that later become sperm cells. |
| Carpels | The female reproductive organ of a flower, consisting of the stigma, style, and ovary. |
| Ovary | A structure containing egg cells; the base of a pistil in a flower. |
| Ovules | The female part of the flower, which produces the eggs that are needed for making seeds. |
| Anther | The terminal pollen sac of a stamen, inside which pollen grains with male gametes form the serm. |
| Pollination | The transfer of pollen from male reproductive structures to female reproductive structures in plants. |
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