Term
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Definition
| less than 23 chromosomes, loss of chromosomes; result of nondisjunction |
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Term
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Definition
| more than 23 chromosomes, multiple of chromosomes |
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Term
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Definition
| ordered display of chromosomes according to length and location of centromere |
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Term
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Definition
| has paired chromosomes in body cells |
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Term
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Definition
| has unpaired chromosomes in sex cells |
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Term
| how many pairs of chromosomes do humans have |
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Definition
| 23 pairs of chromosomes; 22 pairs are autosomes (body); 1 pair are sex chromosomes |
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Term
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Definition
| position of a gene or allele on a chromosome |
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Term
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Definition
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Term
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Definition
| physical appearance; physical expression of genes |
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Term
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Definition
| one dominant gene and one recessive gene; dominant gene masks effects of recessive gene; dominant trait |
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Term
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Definition
| two dominant genes or two recessive genes; either dominant trait expressed or recessive trait expressed |
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Term
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Definition
| autosomal = body; gene in body cells that is always expressed |
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Term
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Definition
| trait occurs only in one sex |
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Term
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Definition
| trait occurs in one sex more often than the other |
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Term
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Definition
| trait that results from combined effects of several loci |
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Term
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Definition
| environmental factors influence a trait |
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