23r - Mendelian genetics is when there is an allele that is...

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Mendelian genetics is when there is an allele that is dominant in a heterozygote. Purple is dominant over white. Non-Medelian genetics is when there is not true dominant allele. If the cross between a purple and white flower results in a light purple or mottled flow, that is non-Mendelian genetics. What happens to the ratio if a cross 2 F1 generation of the light purple flower? Need to remember that the P generation was PP and WW The phenotype for the F2 generation will have a ratio of 1/4 Purple, 2/4 light purple, and 1/4 white. Only the homozygote will have the true color. No matter how many times a light purple is crossed to a light purple, the result will be 1/4, 2/4, 1/4 P W P W PP PW WW PW
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What would happen to the ratio of offspring flower color if a heterozygous plant was crossed to a homozygous purple plant? The outcome would be 2/4 purple and 2/4 light purple. Can you tell me why? What does the ratio of offspring tell you about the parent cross? A couple of parting shots before we move two far away
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23r - Mendelian genetics is when there is an allele that is...

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