Term
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Definition
| 22 pairs of chromosomes, another name-autosomal chromosomes |
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Term
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Definition
each cell contains one pair- X or Y.
female is XX.
Male is XY. |
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Term
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Definition
type of gene determined by two or more alleles. ABO is an example.
allele of A: IAIA / IAi
allele of B: IBIB/ IBi
allele of AB: IAIB
allele of O: ii |
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Term
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Definition
| A picture of chromosomes put together by cutting out each individual chromosome from a photography, matching it to its correspondign homologous pair, and then arranged them in numerical order |
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Term
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Definition
| a diagram that follows the inheritance fo a single treait through several generations in a family |
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Term
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Definition
| the genes located on the sex chromosome |
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Term
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Definition
| "not coming apart" abnormal numbers of chromosomes are produced in the sex cells |
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Term
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Definition
| if the two copies of an autosome do not seperate correly in meiosis, an individual can be born withcells that contain three copies of a chromosome |
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Term
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Definition
| many genetic disorders result from pieces of chromosomes breaking off and getting lost in meosis |
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Term
| Chromosome Translocations |
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Definition
| other disorders arise when pieces of broken chromosomes become reattached to another choromosome |
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Term
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Definition
| invovles withdrawing a small amount of fluid from the sac surounding the fetus |
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Term
| Chorionic Villus Sampling |
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Definition
| tissue surrounding the fetus is removed and examined |
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