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hereditary material that controls all the activities of the cell; provide instructions for life |
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coiled structure of DNA and protein that forms in the cell nucleus during cell division; 23 pairs in humans[image] |
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segements of DNA that carry hereditary instructions and are passed from parent to offspring; located on chromosomes[image] |
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alternate forms of a gene that govern the same characteristics |
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the passing of traits from parent to offspring |
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combination of genes in an organism; the inherited combination of alleles[image] |
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outward appearance of an organism, regardless of its genes |
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the trait observed when at least one dominant allele for a characteristic is inherited |
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a trait that is apparent only when two recessive alleles for the characteristic are inherited |
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egg or sperm cells; a sex cell carries half the number of chromosomes of a regular body cell; gametes |
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a distinguishing quality that can be passed from parent to offspring |
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fusion of an egg and sperm- female and male gametes |
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when there are two identical alleles for a trait; such as HH or hh |
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when there are two different alleles for a trait; such as Hh |
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a tool used to visualize all the possible combinations of alleles from parents
[image] |
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the process by which DNA makes an exact copy of itself before cell division |
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the process which produces two identical daughter cells from an original cell; cell division- each cell contains the same number of chromosomes as the original |
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cell in resting phase performing all cell functions; DNA replicates, organelles duplicate in preparation for cell division[image] |
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nuclear envelope dissolves, chromosomes become visible, spindle fibers form[image] |
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chromosomes align along the equitorial plate (middle of the cell)[image] |
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paired chromosomes separate at the centromere and pull apart toward opposite poles[image] |
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chromatids arrive at opposite poles, nuclear envelope re-forms, chromosomes disperse just prior to cytokinesis[image] |
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