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Explain the reason for each of these steps in the extraction of DNA.a. What is the purpose of adding detergent to the solution?b. What is the purpose of adding isopropanol to the solution?c. Why do you suppose cold isopropanol is used rather than isopropanol at room temperature?d. What is the purpose of filtering the solution? What is being filtered out?
Describe the components and characteristics of plasma. Describe the path of a red blood cell through the heart, pulmonary circuit, and systemic circuit. Mention all valves.
If a food contains 35 g carbohydrate, 4 g protein, and 14 g fat, how many kcal are there? How many kJ are in this food?
In Drosophila melanogaster flies may have red or plum eye color, and normal or stubble bristles. The progeny of a mating between two plum.
Suppose that your microbiology class is going to have a party where everything consumed is produced by microorganisms. What are some items you could take? answer should be 200-300 words long and written clearly?
In the arabinose operon, repression is mediated by araC binding to I2, forming a loop complex that prevents RNA polyermase from transcribing the operon. Why does looping prevent transcription while it seems the promoter sequence is adjacent to the..
Describe the Earth's nitrogen cycle with emphasis on those reactions performed exclusively by prokaryotic cell metabolisms.
If C-1 of glucose is radioactively labeled & then enters glycolysis, which carbon of G-3-P will be labeled? Determine what fraction of the molecules will carry radioactive label?
All known human cancers have been demonstrated to be caused by viruses, You have been asked to design a virus that causes cancer in humans. Which of the following cellular functions would this virus have to possess to cause a tumor (select all that..
What is the water shed and annual surface runoff for the following.
Describe the advantages of a complete digestive system and a closed circulatory system in terms of efficiency. (60 words total 4. Discuss how modifications of the arthropod body plan have contributed to the biological success of these animals. (12..
are ancestry dna tests(mtDNA,Y-chromosome STR test) reliable.
Are any parasitic diseases directly communicable from person to person? If so, how are they transmitted? What kinds of precautions should be taken in caring for persons with directly transmissible parasitic infections?
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