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Question: Compare DNA and RNA with regard to their structure, function, location, and activity. Ho do these molecules differ with regard to the polymerases used to synthesize them?
Question: AN E. coli transcript with the first two nucleotides 5'-AG-3' is initiated from the segment of double-stranded DNA in Figure 5.A below:a. Where is the transcription start site?b. What are the approximate locations of the regions that bind the RNA polymerase homoenzyme?c. Does transcription elongation proceed toward the right or left?d. Which DNA strand is the template strand?e. Which DNA strand is the RNA-coding strand?Figure 5.A5'-TAGTGTATTGACATGATAGAAGCACTCTTACTATAATCTCAATAGCTAACG-3'3'-ATCACATAACTGTACTATCTTCGTGAGAATGATATTAGAGTTATCGATGC -5'
Compare the divisions of the autonomic nervous system's effect on heart rate and stroke volume.how to Describe an action potential.
Estimate which type of protein binds to improperly folded or improperly assembled proteins in the ER, holding them there until proper folding occurs?
Dominant-recessive relationships can make determining genotype tricky, since an individual with the dominant phenotype may have either the homozygous dominant genotype or the heterozygous phenotype.
Activation of T cells requires that antigens be presented from antigen-presenting cells, not simply by exposure to the antigen in solution. What biological rationale may underlie this requirement - consider both from the perspective of how this can a..
Set up a reaction according to the following table. Fill in the amount of each component I would use to set up the reactions, and complete the table:
Explain why is potassium not equally distributed across the membrane and why is cell negative on the inside?
At room temperature, equilibrium potential of K+ in a cell with internal concentration of K+ 10 fold higher than that of external concentration will be approximately.
Describe Tay-Sachs disease. Suppose you are a genetic counselor working with a couple who have just had a child who is suffering from Tay-Sachs disease.
Discuss how many ways can these chromosomes be assorted into gametes and how many different chromosome combinations are possible when crossing two unrelated flies?
Which of the follow statements regarding cancer risk factors is false. Mutagens are generally not carcinogens.
Modern theory suggests that the early pre-life atmosphere on Earth was a reducing one. Why is it believed that oxygen was not present as life formed on Earth.
A student needs 260 ml of buffer at the working concentration (1X) and has a 20X buffer stock. What volume of the 20X stock is required?
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