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1. Describe why topoisomerases are needed in eucaryotic cells even though eucaryotic DNA molecules are linear, not circular like procaryotic DNA molecules.2.a) What is the name of an antibacterial antibiotic which acts by affecting topoisomerase?b) What is the name of an anticancer drug which acts by affecting topoisomerase?3. Topoisomerases are involved in DNA replication, so it makes sense that a drug which messes up topoisomerase activity stops the cell from reproducing. However, in many cases, the cell not only stops reproducing but is also killed because its DNA is broken. Suggest a mechanism for how messing up topoisomerase activity could cause this effect on the cell's DNA.
What are some examples of chromosome deletions that have been documented in humans?Find out examples of how chromosomal inversion.
Consider a transmembrane protein complex that forms a hydrophilic pore across the plasma membrane of a eukaryotic cell. The pore is made of five similar protein subunits, each of which contributes a membrane-spanning alpha-helix to form the pore.
Compared to a carbon atom with only single covalent bonds, a carbon with a double bond 1 Shares fewer electron pairs with other atoms two Is more flexible in the spatial arrangement.
Assume you are researching microbial life in the Rocky Mountains. You scoop up a water sample from a melted snow puddle because you are curious about the possible microbes that might live there.
Assume if you start a meal through eating a high fat slice of cake or ice cream, it could slow down the emptying of your stomach contents into your intestine.
Which magnification was most helpful in making this determination? What optical principles are involved here and describe the role of each.
Big population of sego lilies on side of Kinport Peak, your colleague is interested in knowing the degree to which global climate change is affecting natural populations in Idaho.
Complete the Punnett squares for a cross between the male with blood type B and a female with blood type AB. Build two Punnett squares and answer the following given questions about them.
Name the bones of pectoral girdle and the bones of the pelvic girdle. Evaluate the pectoral and pelvic girdles with regard to strength, versatility, and function.
Determine which of the following mutations is more likely to produce a severe rather than mild phenotypic consequence
Explain the interaction of calcium with other proteins and how this alternate control system affects the rate and duration of smooth muscle contraction.
Discuss when we compare amino acid differences to determine the evolutionary "distance" between organisms, what assumptions are being made about the rate at which mutations occur over time?
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