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Q. A greenhouse experimentation to test growth rates in tomato cultivars was conducted using sterile soil mix and watering with sterile solutions of water and fertilizer. Following germination, half of the plants in each group were transplanted into soil that was obtained from a nearby agricultural field (nonsterile), other half into sterile soil. After some week's plants that were transplanted into nonsterile soil exhibited a much higher growth rate compared to the plants transplanted into sterile soil. What would be the most likely explanation for this result?
Explain how cultural contact can change the artistic practices of a society. Can you give an example?
Can enhancers work in trans? That is, can an enhancer on one piece of DNA activate a promoter on another piece of DNA. Propose an experiment to test this. Be sure to discuss any appropriate control experiments.
Similarities and differences of Neanderthals, Cro-Magnons, and Homo Sapiens.
Describe what a prokaryote is and include a) a description of the genetic material and location, b) what type of organelles they have (if any), and c) if they have a cell wall, cell membrane, or both
Give an instance of a successful plant disease forecasting system and explain how it works. How plant diseases could be forecasted and what are the needs for that.
Which of the following is true for natural killer cells.
Explain the difference between allopatricand sympatric speciation. Describe 2 specific conditions that canlead to each type of speciation. Include the following terms inyour answer: gene flow, reproductive isolation, genetic mutation,allele freque..
Despite the numerous checkpoints present in the cell to prevent the placement of the wrong nucleotide in a replicating DNA, a few mistakes can be made. Why is this a positive development.
Describe the functional relationship between the respiratory system and the lymphatic system. Several of the ten leading causes of death are identified as being related to nutrition, including cardiovascular disease, cancers, and diabetes.
The fish are cold-blooded while the cows are warm-blooded. Explain, in terms of assimilation efficiency and production efficiency, why more people can be fed from the fish than the cows (assuming similar amounts of algae/grass).
Most transcription factors must form dimers to function. How can homodimerization and heterodimerization explain how a transcription factor can both activate and repress transcription.
How various different types of gametic combinations.
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