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bio
N/A
12
Biology
9th Grade
11/02/2009

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Term
allele
Definition
an alternate form of a gene
Term
chromosome
Definition
a discrete structure composed of DNA and protein found only in the nuclei of cells
Term
dominant
Definition
a trait that covers or "mask" another allele
Term
filial
Definition
having or assuming the relation of a child or offspring
Term
genotype
Definition
the genetic makeup of an individual for; for a particular trait, you can't always tell the genotype by looking at the phenotype
Term
heterozygous
Definition
having different alleles for the same trait on a chromosome; recessive and dominant are paired
Term
homozygous
Definition
having the same allele for the same trait on a chromosome; two recessive genes are paired, or two dominant alleles
Term
homozygous dominant 
Definition
having dominant alleles for the same trait on a chromosome
Term
homozygous recessive
Definition
having recessive alleles for the same trait on a chromosome. this is the only time a recessive trait will be phenotypically seen
Term
hybrid
Definition
mixed offspring
Term
mendilian traits
Definition
traits that are under the influence of one genetic locus; also called simple traits 
Term
phenotype
Definition
the observable or detectable physical characteristics of an organism; what it looks like
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