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an organism's reproductive cells, such as sperm or egg cells. |
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a form of asexual reproduction that produces identical offspring. |
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a segment of DNA that codes for a protein or RNA molecule. |
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the DNA and the proteins associated with DNA,become visible. |
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the two exact copies of DNA that make up each chromosome. |
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the two chromatids of a chromosome are attached at a point called a centromere. |
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chromosomes that are similar in size, shape, and genetic content. |
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a cell, such as a somatic cell, contains two set of chromosomes. |
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a cell, such as a gamete, contains one set of chromosomes. |
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a fertilized egg cell, the first cell of a new individual. |
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chromosomes that are not directly involved in determining the sex of an individual. |
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one of the 23 pairs of chromosomes in humans, contain genes that will determine the sex of a individual |
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a photo of the chromosomes in a dividing cell that shows the chromosomes arranged by size. |
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a repeating sequence of cellular growth and division during the life of an organism. |
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The cell cycle stage between nuclear divisions, when chromosomes are extended and functionally active. The metabolically active non-dividing stage of the cell cycle. |
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the process during cell division in which the nucleus of a cell is divided into two nuclei. |
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the process during cell division in which the cytoplasm divides. |
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the uncontrolled growth of cells. |
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cell structures made up of both centrioles and individual microtubule fibers that are involved in moving chromosomes during cell division. |
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a form of cell division that halves the number of chromosomes when forming specialized reproductive cells, such as gametes or spores. |
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portions of a chromatid on one homologous chromosome are broken and exchanged with the corresponding chromatid portions of the other homologous chromosome. |
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In meiosis, the random assortment of the alleles at two or more loci because they are on different chromosome pairs or far apart on the same chromosome pair. |
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the process by which sperm are produced in male animals. |
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cells that change in form and develop a tail to become male gametes. |
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the process by which gametes are produced in female animals. |
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a cell that develops into a gamete or more commonly ,egg. |
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a single parent passes copies of all of its genes to each of its offspring. |
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an organism that is genetically identical to it's parent. |
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two parents each form reproductive cells that have one-half the number of chromosomes. |
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the entire span in the life of an organism from one generation to the next. |
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the gametes(sperm and egg cells) join . |
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the diploid phase in the life cycle that produces spores. |
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a haploid reproductive cell produced by meiosis that is capable of developing into an adult without fusing with another cell. |
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the haploid phase that produces gametes by mitosis. |
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