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Chromosomes |
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Chromosomes Spaghetti-like structures located within the nucleus (or central portion) of each cell. Chromosomes contain the genetic information necessary to direct the development and functioning of all cells and systems in the body. They pass on hereditary traits from parents to child (like eye color) and determine whether the child will be male or female. Mentioned in: Chorionic Villus Sampling, Gender Reassignment Surgery, Intersex States, Systemic Lupus Erythematosus chromosomes (krō´m n the small, dark-staining, and more or less rod-shaped bodies situated in the nucleus of a cell. At the time of cell division, chromosomes divide and distribute equally to the daughter cells. They contain genes arranged along their length. The number of chromosomes in the somatic cells of an individual is constant (the diploid number), whereas just half this number (the haploid number) appears in germ cells. chromosome aberration, n a rearrangement of chromosome parts as a result of breakage and reunion of broken ends. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Most African Americans have both African and European forebears, so their chromosomes are mosaics of genes from the two continents. The findings, released February 21, found that almost a quarter of mothers with more than one gay son in the study processed their X chromosomes in the same way. Next, the students learn how DNA's complex sequence is replicated prior to mitosis, and the lesson scales up to the LEGO Chromosomes kit to model the process of mitosis. |
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