A genus is composed of a number of related
a. kingdoms
b. phyla
c. orders
d. species
Ans: d. species
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The study of how genes are transferred from parents to their children and the role of genes in health and disease is known as
a. Genomics b. Genetics c. Proteomics d. Transcriptomics
Genetic recombination in somatic cells is used to
a. produce variability in offspring. b. determine cell types during development. c. repair damaged or broken chromosomes. d. produce specialized tissues in organs. e. establish the sex of the individual.
Every winter, many individuals tragically die in their sleep due to faulty heaters that leak carbon monoxide (CO) during the night. How does CO poisoning lead to death?
A. CO binds more tightly to carbonic anhydrase than does carbon dioxide. B. CO binds to oxygen, and the CO-oxygen complex cannot bind to hemoglobin. C. CO coats the surfaces of the alveoli, preventing diffusion of oxygen into the blood. D. CO binds more tightly to hemoglobin than does oxygen. E. CO inhibits the chemosensitive neurons in the aortic and carotid bodies.
Malpighian tubules are the excretory system attached to the gut in
A. earthworms. B. insects. C. planarians. D. humans.