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Discuss the function of HIV protease, integrase, and reverse transcriptase. Identify the characteristics of HIV which account for its transmission. Include the basic epidemiology of this virus and its method of transfer. Discuss the normal function of B-lymphocytes, killer T-lymphocytes, helper T-lymphocytes, and macrophages in the immune system. Explain how […]

1. In Drosophila, the mutant genes for ebony body andpeach eyes, e and pe respectively, are linked. A female fly with normal eyes and body colour is mated to a male homozygous recessive for both mutants. The following progeny phenotypes were obtained: e, Pe 33 E, Pe 12 e, pe […]

Brain Size and Intelligence Background: Is brain size a measure of intelligence? Brain size tends to vary with body size: for example, sperm whales and elephants have brains up to five times as massive as human brains. So across species, brain size is not a perfect measure of intelligence. And within […]

1. What are some differences between diastolic and systolic pressure? 2. Trace the flow of blood from the superior and interior vena cava to the lungs and back to the aortic arch. 3. How is heart anchored to the chest? How does the rib cage serve the heart? How could […]