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| Contains the genes that determine the sex of an individual. |
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| Any chromosome that is not a sex chromosome. |
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| A trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosome or the Y chromosome in humans. |
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| One of a pair of genes that tend to be inherited together. |
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| Is a diagram that shows the linear order of genes on a chromosome. |
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| In chromosome mapping, an increment of 1 percent in the frequency of crossing over. |
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| occurs in an organisms gametes. |
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| Take place in an organisms body cells and can therefore affect the organism. ex: skin cancer, and leukemia. Can not be inherited. |
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| Cause, death, often before birth; a gene or chromosomeal mutation that influences the development of an organism in such a way yhat the organism can not survive |
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Is the loss of a piece of a chromosome due to breakage. [image] |
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| A chromosome segment breaks off, flips sround backword and reattaches. |
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| A piece of one chromosome breaks off ans reattaches to a nonhomologous chromosome. |
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| A chromosome fails to seperate from its homologue during meiosis. |
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| A change that occurs within a single gene or other segment of DNA on a chromosome. |
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| One nucleotide replaces another |
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| A mutation, such as the insertion or deletion of a nucleotide in a coding sequence, that results in the misreading of the code during translocation because of a change in the reading frame. |
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| One or more nucleotides are added to a gene, which can also result in a frameshift mutation. |
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| Is a diagram that shows how a trait is in herited over several generations. A family history that shows how a trait is inherited. |
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| Have one copy of the recessive allele but do not have the disease. |
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| Are diseases or disabling conditions that have a genetic basis. |
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| when several genes influence a trait |
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| Characters that are influenced strongly both by environment and by genes. |
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| Genes with 3 or more alleles |
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| Two dominant alleles are expressed at the same time |
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| When an individual displays a trait that is intermediate between the two parents. |
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| Males and females show differnet phenotypes but have the same genotype. |
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| Is an autosomal dominant condition charcterized by forgetfulness and irritability. |
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| The technique allows a physician to remove some amniotic fluid from the amnion, the sac that surronds the fetus. A sample is taken from fluid-filled sac! |
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| sample is taken from the tissue between the uterus and the placenta |
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| Offers info. about genetic makeup |
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| places healthy copy of a gene into a person whose gene is defective |
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