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Microevolution is defined as a change in allelefrequencies in a population over generations. Please explain whatan allele is, in genetic terms. Name the three major factorsinvolved in allele frequency changes in populations. Describe, indetail, how natural selection works on individuals, while evolutionoccurs in populations. Include a real or hypothetical example […]

In the mythical beast Nechnüm nreyab, horn length is an example of continuous variation, under the control of five genes: A, B, C, D, and E. Each of these genes segregates an additive and a non-additive allele. Horn length can be: 2, 4, 6, 8, 10, 12, 14, 16, 18, […]

A 49-year-old white female presents with a cough (producing yellow-green sputum) that has been going on for 3 days. She has labored breathing even under slight exertion. History:The patient is hypertensive and is being treated with metoprolol tartrate (a beta-blocker). She had a urinary tract infection a month previously and […]

While we know it is important to have certain pH levels in various parts of our bodies, it is also known that drastic changes in those pH levels can lead to serious health problems. In at least words, discuss the importance of the pH in two human anatomical regions and/or […]