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In tomatoes, the three mutant traits, dwarfness, green flesh, and white flowers, are due to the homozygous recessive state of the genes d, gf, and wf (respectively). A dwarf, green-fleshed, white-flowered plant is crossed as the pollen parent to the homozygous normal plant.
a. Diagram the cross, using the forked-line method, to determine the F2 phenotypic ratio. Include phenotypes with the appropriate expected ratios.
b. If the F1 were testcrossed, what would be the expected phenotypic and expected genotypic ratios?
Based on the data, propose a hypothetical biochemical explanation for the colors of the flowers in the F2 progeny. Again, explain your reasoning.
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What advantages would there be for an organism to be able to turn on or off particular genes in response to certain conditions?
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define why a change in amino acid sequence might affect
Once you arrive at the distal ileum, go through mucosal membrane and enter the bloodstream via the Superior Mesenteric Vein. Evaluate the cellular organelles and other structures to the parts of a city. For instance, the nucleus is city hall and the ..
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Some microbiologists recommend incubating this medium at 37°C, along with an uninoculated control, and then transferring all tubes to the refrigerator prior to reading them. Why might this be the preferred technique in some situations? What potent..
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