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1. Explain the hierarchy of plant structure using the stem as an example organ and follow it through each stage until you reach the level of cell. Only use the vascular tissue systems.
2. In the evolution of land plants we see several major trends. Describe how the evolution of seeds decreases a plant's dependency upon water
3. Describe the relationship between photosynthesis and cellular respiration in a single cell of a plant leaf.
4. How can the quality of the soil affect the growth of plants?
5. Describe transpiration in plants. What challenges does a plant have in very arid environments?
6. Explain the process that occurs every fall when the maple trees lose their leaves.
7. Describe the acid growth hypothesis for cell elongation in plants.
8. How does a single ripe banana affect other fruit around it?
1. How many total base pairs are in all the mammalian genes? 2. What proportion (%) of the total genome does this represent? 3. What is the probability that a random mutation will occur in any given gene?
Why did the "RNA World" hypothesis have to await the discovery of ribozymes in order to become a widely attractive scenario?
What kind of study design, using petroleum workers, would provide the most useful information on whether benzene affects incidence rates of leukemia in this industry?
Two pea plants heterzozygous fro purple flowers. They produce 100 seeds. If you pick one and let it grown what is the chance it would be white. What is the chance it would be purple?
A women is perspiring profusely with rapid breathing, breath smells like acetone and blood sugar is 650mg/ml, blood chemistry indicates acidosis, what is her diagnosis, is it hypoglicemia, but thrown off by rapid breathing.
The [H+] of a solution is 1.0 x 10-5 M. After the addition of an unknown substance, the [OH-] was 1.0 x 10-3M. What was the unknown substance added?
Would you expect the growth rate of the infectiousorganisms found in an abscess that developed from a wound to mimicthe growth curve obtained in the laboratory
What is the maximum distance (in map units) that can exist between two linked genes? Explain your reasoning.
The broad bean is diploid and 2n= 18. Each haploid chromosome setcontains approximately 4 m of DNA. the average size of eachchromosome during metaphase of mitosis is 13 µm. What is the average packing ratio of DNA at metaphase? How is this packing..
The energy harvested from C-H bonds in glucose, transferred by electron carriers, contribute indirectly to production of ATP in mitochondria through chemiosmosis.
Determine which of the following methods can be used to identify the mesodermal cells that give rise to the vertebrate limb?
Why is it more important to use fresh cultures in the coagulase test than in a test medium such as milk agar?
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