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Science-Reproduction
Life Science- Cell Reproduction Unit
| Definition | Term |
|---|---|
| Rod-shaped structures that DNA is organized into. | Chromosomes |
| A portion of DNA that controls the characteristics of an offspring. | Gene |
| The complex process of separating duplicated chromosomes so that two new cells are formed. | Mitosis |
| Two copies of a chromosome once it has been duplicated in interphase. | Chromatids |
| The point where the chromatids are connected, | Centromere |
| Fibers that connect to the centromeres of the chromosomes and that help push and pull the chromosomes apart during mitosis. | Spindle Fibers |
| Simple cell reproduction used by prokaryotic cells (bacteria). Means "splitting in two parts." | Binary Fission |
| A form of cell division that produces sex cells, which contain HALF the normal number of chromosomes. | Meiosis |
| An egg is the female sex cell and sperm is the male sex cell; each has half the number of chromosomes. | Sex Cells: sperm and egg |
| The joining of egg and sperm. | Fertilization |
| A fertilized egg, formed by the joining of egg and sperm. | Zygote |