Q19 Suggest a mechanism that would allow a plant to grow better if it had interm
ID: 189146 • Letter: Q
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Q19 Suggest a mechanism that would allow a plant to grow better if it had intermorph neighbors than if it had intramorph neighbors. Think about the degree of genetic similarity between the focal plant and its neighbors and make a link between genetic similarity and resource use. Your answer Q20 When biologists study natural selection they are looking for changes in genotype or allele frequencies across generations in the real world. Based on the thinking you have just done about plant growth, density, and neighbors, which experimental treatment(s).is (are) most likely to give you information about relative fitness of the two morphs that would apply to nature? Why? Your answerExplanation / Answer
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Answer 1: As a plant grows, it proceeds towards reproductive growth from the vegetative growth. During reproductive growht, the plants undergo cross-pollination or self-pollination. If a plant resides in the neighborhood of intramorphs or plants of same variety, they will tend to minimize cross-pollination and hence minimized variation. On the other hand, if a plant resides in the neighborhood of intermorphos or plants of different variety, they will tend to maximize cross-pollination and hence variation. The plants with high variation tend to better acclimatize to their environment and hence evolve. Thus, sexual reproduction and cross pollination thus generating variation remain the main sources to generate this fitness.
Answer 2: As a genetically varied or cross-pollinated plant is grown, it shows a variety of features which are different from the general plants and are more acclimatize to their environment. Some of the experiments which suggest the enhanced fitness of these genetically modified organisms can be performed are:
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