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genetics heredity
genes dna
5
Nursing
Undergraduate 1
11/08/2010
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Term
chromosome
 Definition
thread like structures of dna there are 46 (23 pairs)
Term
natural selection
 Definition
individuals with genetically controlled characteristics reproduce more successfully and the species comes to resemble those individuals more and more as time passes
Term
alleles
 Definition
a pair of genes found on corresponding chromosomes that affect the same trait
Term
genes
 Definition
basic units of genetic instructions which are segments of DNA molecules
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