BIOL-UA 12 Lecture Notes - Lecture 20: Flowering Plant, Poliovirus, P53
31 May 2016
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Lecture 20: plant development: arabidopsis is a model for understanding genes controlling plant growth and development. Arabidopsis gene chip: whole genome is on the chip. Found square units in a cork and called them cells. 200 years later, schleiden discovered that cells were in animals too, not just in plants: mendel: genetics. The discovery of genes, with recessive and dominant alleles was found in the pea plant: transposable dna elements were discovered in corn kernels by mcclintock before dna was discovered. Reason things more easily discovered in plants as you can see them. The anthocyanin gene pigments kernels of corn and is wild type as it protects plant embryo from the. Mcclintock discovered that a certain transposable element can insert itself into the gene and inactivate the anthocyanin gene, making the kernel just yellow (no pigment). Some kernels were spotted and she hypothesized that the gene element that went into the anthocyanin gene was automatically removed.
