Genetic Crosses

Genetic Crosses - Genetic Crosses Genetic Show possible...

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Genetic Crosses Genetic Crosses Show possible outcomes of genes the new generation will have We use: Gene diagrams Punnett Squares
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Terminology Terminology Genotype Phenotype Parent Gamete Offspring dominant recessive allele
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Gene control of characteristics Gene control of characteristics All characteristics are controlled by a minimum of 2 genes. These genes give the characteristic a different of presenting itself. Different genes that control the same feature are called ALLELES
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EYE COLOUR EYE COLOUR Possible alleles – blue , brown, green, hazel etc (each colour needs its own gene) It is possible to have pairs of different alleles, alleles are usually given a letter
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Genotype and phenotype Genotype and phenotype Genotype is the letter or term used to describe the allele of an individual gene or pair of genes Phenotype – is how the gene (or pair) shows itself, how it appears.
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Dominance and Dominance and recessiveness recessiveness Some alleles for a feature are able to mask
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This note was uploaded on 11/23/2011 for the course BIO 100 taught by Professor Robinson during the Fall '08 term at BYU.

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Genetic Crosses - Genetic Crosses Genetic Show possible...

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