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Many groups are using modified RNA with 2'-deoxy-2'-fluoro substitutions for riboses (i.e. a 2'-fluorine instead of a 2'-OH) to prevent RNA cleavage by ribonucleases.
How would the 2'-flouro substitution prevent cleavage of the phosphodiester bond by ribonucleases?
Think about a grass that grows back to mid phase in fifteen days and low phase III in 30 days after grazing down to the minimum height for efficient re-growth and plant survival.
Using Rasmol produce an image of oxidoreductase structure code 2XXE that, clearly illustrates the location of the catalytic site of the enzyme. State and show in an image the active site residues.
Write a single balanced chemical reaction that represents the net conversion of ?-ketoglutarate to fumarate, and the two corresponding half cell reactions (also balanced). Show How you got the answer please.
The D. melanogaster genome consists of approximately 1.7 x 108 base pairs. If DNA synthesis occurs at a rate of 40 base pairs per second, and the entire genome is replicated in 10 minutes, how many bidirectional origins of synthesis are required t..
Discuss the main mechanism involved in auxin’s ability to stimulate cell elongation? Identify another important plant response that employs the same mechanism.
Determine which mode of inheritance produces heterozygotes with phenotypes that differ from homozygote but more closely resembles one homozygous phenotype than other?
Meiosis explains Mendel's laws. Explain the phenotype of a mutant in the cell cycle that would disrupt Mendel's first law
A student analyze 5,000 RFUs in a 200ul aliquot from a G3-500 ml culture. How many total RFUs will be present in a G3-15ml sample? During rGFP purification in lab#4.
Restriction endonucleases are especially useful if they generate "sticky" ends. What makes an end "sticky" and why is this especially useful for inserting DNA fragments into plasmid DNA?
Define spontaneous generation and who found this idea with animals? who discover his idea for microbes? describe his experiments?
Unlike steroid hormones, signaling molecules that are large and/or hydrophilic cannot pass through the cell's plasma membrane and therefore must bind extracellularly to receptor molecules in the plasma membrane.
Eric is a twenty-one-year-old, sexually active college student who presents to the infirmary complaining of dysuria and pyuria.
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