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chap 2
genetics
10
Physiology
Undergraduate 4
05/18/2012

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Term
chromosomes 
Definition
tightly coiled strands of DNA from both parents ans store and transmit gentic information 
Term
Genes
Definition
segmants of DNA along the lentht of chromosomes; unit of hereditary that determines charactistics of offspring
Term
DNA
Definition
long double stranded molecule; twisted ladder; blue print of a person; complex molecule that contains gentic information
Term
Genotype
Definition
the actual genetic material; a persons genetic heritage; all genes
Term
Phenotype
Definition
Directly observed traits; what you see; measurable and observed characteristics
Term
Alleles
Definition
Alternate forms of genes
Term
Dominant Recessive Genes Principle
Definition
Recessive genes only expressed if both are present
Term
 Sex- Linked Genes
Definition
Mutated genes is carried  on the X chromosome; most mutate genes are recessive
Term
Genetic Imprinting 
Definition
Alleles are imprinted or chemically marked; exception to the dominant-recessive principle
Term
polygenic Inheritance
Definition
Many Genes deterimine charistics
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