Why do physicians often examine the lymph nodes of cancer patients?
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When cancer spreads from its original site, the cells often enter lymphatic capillaries and eventually arrive in lymph nodes, which filter the lymph.
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Migration, genetic drift, and mutation are like natural selection in that they:
A. result in evolution of a population. B. may alter the allele frequency in a population. C. may alter the genotype frequency in a population. D. are all methods of evolutionary change. E. All of the answer options are correct.
_____ occurs when a cloned gene recombines with the normal gene on a chromosome to create a genetically modified organism (GMO).
A. Gene replacement. B. Gene knockout. C. Transfection. D. Transformation. E. Infection.
Which of the following families of DNA viruses is the most prevalent in humans?
A) Poxviridae B) Herpesviridae C) Adenoviridae D) Polyomaviridae E) Rhinoviridae
Discuss the life cycle of one of the roundworms including: a) developmental forms and corresponding hosts, b) transmission, c) human disease and symptoms, d) treatment, and e) prevention.
What will be an ideal response?