BIO 2133 Chapter Notes - Chapter 9: Prokaryote, Wild Type, Chloroplast Dna
20 Mar 2017
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In these plants, some branches had white leaves, green leaves, or variegated leaves. The completely white leaves and the white areas in the variegated leave lack chlorophyll (produces the green color) If seeds were derived from ovules on branches with green leaves, all the of offspring will have green leaves. Inheritance was transmitted though the cytoplasm of the maternal plant: pollen had little to no effect on this phenotype, since the color of leaves is a function of the chloroplast, genetic information is in the organelle. In this case, the genetic defect in the chloroplast is the inability to produce the green pigment a result in a mutation in the dna. 9. 2 knowledge of mitochondrial and chloroplast dna helps explain organelle heredity: both mitochondria and chloroplasts contain their own distinct dna. 9. 3 mutations in mitochondrial dna cause human disorders: 3 factors need to be considered if a human disorder is linked to the inheritance of altered mitochondria.
