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Define the concept of biodiversity and explain the importance of biodiversity to plant communities. Describe particular threats to biodiversity that you see happening in your area of the country or community and discuss what might be done to counteract those threats and protect the plant communities.
Discuss five anatomical changes in the vertebrate body plan during the course of vertibrate evolution and describe how each of the changes have influenced the history of Vertebrates.
Why do precapillary sphincters wrap aroung the root of each capillary where it leaves the metarteriole? Why do vessels branch to form capillary beds?
The following 3-recessive genes are found in corn. Brittle endosperm, glossy leaf, and ragged seedling. A tri-hybrid is test-crossed producing the following offspring.
Environmental Carcinogens mutagens and other environmental carcinogens UV light organic solvents high energy radiation asbestos tobacco smoke others factors? What does UV light do to a cell.
A plasmid digest with BamHI produced 2 kb and 4 kb fragments. Digest of a plasmid with HindIII produced 6 kb fragment. Double digest with both enzymes produced 1 kb, 2 kb and 3 kb fragments. Sketch a plasmid map.
A series of genetic crosses are planned to estimate whether genes for two characters are linked or unlinked. It is known from previous work that both characters exhibit a complete dominance inheritance pattern.
How can you infer what type of volcano erupted in a given area based on type of volcanic deposits now found as layers of rock. What abnormality may underlie those conditions.
Provide two signs of SCID. Explain two options for expecting parents who have family members with SCID and are concerned their child will be affected with the immunodeficiency.
Suppose that a new low calorie sweetener is developed. The structure is novel and is tested with the Ames test for mutagenicity.
Think about a strain of E. coli that has a mutation in the gene encoding the IIA protein of the phosphotransferase system. The transport of glucose is not affected through this mutation.
Briefly explain why hydrogen bonds and salt bridges do not contribute much to protein stability at room temperature.
Discuss how does evaporative cooling contribute to the stability of bodies of water while also preventing from overheating?
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