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The concepts of traits, genes, and alleles in genetics. Genes encode proteins that produce various traits, and each gene has a specific locus on homologous chromosomes. Alleles are alternative forms of a gene, and organisms inherit one allele from each parent. Dominant and recessive alleles determine the expression of traits, and homozygous and heterozygous genotypes yield different phenotypes. The text also explains the relationship between genotype and phenotype.
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Genes encode proteins that produce a diverse range of traits.
The same gene can have many versions.
Genes influence the development of traits.