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Tag Archives: genetic variation

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The Hardy Weinberg Principle

ScienceBy William Anderson (Schoolworkhelper Editorial Team)July 30, 2010Leave a comment

Genetics Definitions Genes: portion of the DNA molecule that codes for a particular protein. Loci: location in the DNA molecule of the gene Alleles: forms of a gene Homozygous: paired alleles are identical Heterozygous: paired alleles are different Genotype: set of all alleles (i.e. genetic expression) Phenotype: all observable traits (i.e. physical expression) Genome: The…

Meiosis: Purpose and Process

ScienceBy William Anderson (Schoolworkhelper Editorial Team)July 2, 2010Leave a comment

Sexually reproducing organisms create new offspring with the fusion of two parental cells.  If two somatic cells, with a full complement of chromosomes, were allowed to unite, each new cell would have twice the number of chromosomes its parents had.  To prevent this doubling from occurring in sexual reproduction, a special division process (meiosis) is…

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