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Concept explainers
To review:
By using the phylogenetic tree given, it is required to construct hypothesis about the origin of the virus lineages by using virus isolates that are given on the right of the tree.
Given:
It is given that a virus which spread in West Nile killed many bird species and caused inflammation of the human brain and in horses. In 1930, it was first found in Africa. Then in 1990, it was found throughout Eurasia. In 1999, it was first detected in New York and spread across the United States. The phylogenetic tree of West Nile is shown below:
Introduction:
A phylogenetic tree shows evolutionary relationship among various biological species. It is important to reconstruct with the help of phylogenic tree to know the past of the biological processes. In case of infectious diseases, it is important to know that how, when and where disease initially entered the human body and population. This can be done by making a phylogenic tree and tracing traits of the diseases.
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Chapter 21 Solutions
LIFE: THE SCIENCE OF BIOLOGY
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- Why are nutrient absorption and dosage levels important when taking multivitamins and vitamin and mineral supplements?arrow_forwardI'm struggling with this topic and would really appreciate your help. I need to hand-draw a diagram and explain the process of sexual differentiation in humans, including structures, hormones, enzymes, and other details. Could you also make sure to include these terms in the explanation? . Gonads . Wolffian ducts • Müllerian ducts . ⚫ Testes . Testosterone • Anti-Müllerian Hormone (AMH) . Epididymis • Vas deferens ⚫ Seminal vesicles ⚫ 5-alpha reductase ⚫ DHT - Penis . Scrotum . Ovaries • Uterus ⚫ Fallopian tubes - Vagina - Clitoris . Labia Thank you so much for your help!arrow_forwardRequisition Exercise A phlebotomist goes to a patient’s room with the following requisition. Hometown Hospital USA 125 Goodcare Avenue Small Town, USAarrow_forward
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