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1. What was the prevailing view of the origin of species during Darwin's time?
2. What was Darwin's key insight from the Galapagos expedition?
3. What important information did Darwin receive back in England from ornithologist John Gould that helped him arrive at his key insight?
What do plants do to prevent water loss in a hot, dry climate?
The community structure of a habitat is defined by the interactions of the organisms that inhabit it. What is interspecific competition? What are two main types of interactions that occur in all communities? Provide one example of each type of rel..
Pretend that our class conducted a lab on the population genetics of squirrels in Utah. The class was split into three group and sent to different areas of the state to collect DNA samples.
How are histones involved in regulation of eukaryotic gene regulation? Be sure to consider the dynamic nature of this regulation so you should discuss how genes can be turned on or off depending on the chromatin. Also, indicate how chromatin is us..
Suppose that the genes required for Isoleucine biosynthesis are contained within an operon. If the cell is grown in the presence of high values of isoleucine you would expect to find,
You are studying a a new population of stem cells you have found in lung epithelium. You find there is one novel trascription factor and one novel signaling molecule.
Develop a hypothesis as to why there was an increase in the proportion of the short-stemmed dandelions within the population.
Two plants in a cross were each heterozygous for two gene pairs whose loci are linked and twenty-five mu apart. Assuming that crossing over occurs during formation of both male and female gametes
Many flowering plants have co-evolved with their pollinators, while others have not. Give one advantage and one disadvantage for flowering plants that have generalists pollinators and flowering plants that have specialist pollinators.
What are the three main ions that play a role in the equilibrium membrane potential. What ion drives the potential, and why. What kinds of functions might these shared genes have.
What is the relationship between an increase in light intensity and photosynthetic rate in leaves from a corn plant? How does this association compare with what you observed for tomato plants.
Which type of fungal infection is the most serious? A. dermatophytic B. cutaneous C. systemic D. subcutaneous E. all of the above are equally serious infections.
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