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| The substance of chromosomes, consisting of DNA and associated proteins. |
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| Members of a pair of chromosomes of the same structure and carrying the same set of genes. |
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| Describes a cell that has only one set of chromosomes per nucleus. |
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| Describes a cell that has two sets of chromosomes per nucleus. |
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| The point of attachment between two chromatids and the point of attachment of the chromosome to the spindle during cell division. |
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| Specific DNA sequences scattered along the length of a DNA molecule where replication begins. |
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| In a duplicated chromosome, the two identical copies attached at the centromere. |
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| The tip or end of a linear chromosome, consisting of repeated copies of a simple noncoding sequence. |
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Definition
| All of the events related to cell reproduction from birth of a new cell to division of that cell. |
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| Transitions in the cell cycle at which decisions are made about proceeding to the next phase. |
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| Period of the cell cycle between cell divisions. |
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Definition
| Cell division, including mitosis and cytokinesis. |
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Definition
| Division of a nucleus in which the daughter nuclei are genetically identical to each other and to the parent cell. |
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Definition
| Division of the cytoplasm during cell division. |
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Definition
| In a diploid cell, two successive divisions of the nucleus that result in the reduction of chromosome number from 2n to 1n. |
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| Pairing of homologous chromosomes to form a “tetrad” during meiosis I. |
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Definition
| Breakage and reciprocal exchange between nonsister chromatids on homologous chromosomes, leading to recombination between genes on the same chromosome. |
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Definition
| At meiosis, the process that generates haploid products of meiosis with genotypes different from each of the two haploid genotypes that first constituted the meiotic diploid. |
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