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Biology
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Biology
Genes and Alleles
Biology
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Genes and Alleles
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Locus
A specific location of a gene in a chromosome.
Allele
An alternative form of a gene for a specific trait that is located on the same locus of a pair of homologous chromosome
Homologous chromosomes are a set of one maternal and one paternal chromosome that pair up with each other inside a cell
Heterozygote : Alleles at loci of a pair of homologous chromosomes are different
Homozygous dominant: On these two loci, the genes are homozygous because of their similar dominant allele.
Homozygous recessive: On these two loci, the genes are homozygous because of their similar recessive allele.
Centromeres are typically located in the central area of a chromosome
Each gene is located on the same locus of :
A pair of homologous chromosomes.
Dominant alleles are written in
Capital letter
Recessive alleles are written in
Small letter
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