Genetics - Definitions and concepts from BIOL 102 Lab...

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Definitions and concepts from BIOL 102 Lab Manual and Biology by Campbell and Reece, 7 Ed.
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Genes e Discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA e Chromosomes e Look at pages 56 and 57 in the lab manual e Alleles e Alternative versions of a gene that produce distinguishable phenotypic effects
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Gene pool e Total aggregate of genes in a population at a time e Homozygous e Having two identical alleles for a given gene e Heterozygous e Having two different alleles for a given gene e Dominant e Allele that is fully expressed in the phenotype of a heterozygote e Recessive e Allele whose phenotypic effect is not observed in a heterozygote
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e Physical traits including anything that can be observed or measured empirically in an individual e Genotype e Alleles an individual has for a genetically- controlled locus e each individual has 2 alleles (1 from each parent) at a particular locus e Capital indicates dominant, lowercase is recessive Ee; EE - Heterozygous or Homozygous dominant - Eyes not blue ee - Homozygous recessive - Blue eyes http://naturalsciences.sdsu.edu/ta/classes/lab2.4/trait. jpg
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Genetics - Definitions and concepts from BIOL 102 Lab...

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