Which of the following is true about pasteurization?
a. the technique was invented by Alexander Flemming
b. it dramatically affects the color, texture, and taste of foods
c. moderately high temp is applied, long enough to kill coxiella burnetii
d. food is heated for a very long time to kill microbes
Answer: c. moderately high temp is applied, long enough to kill coxiella burnetii
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At the end of meiosis II, each of the four resulting cells contains
A. one full set of chromosomes, each with 2 molecules of DNA. B. two full sets of chromosomes, each with 2 molecules of DNA. C. one full set of chromosomes, each with 1 molecule of DNA. D. two full sets of chromosomes, each with 1 molecule of DNA.
TC cells express a(n) ________ protein co-receptor
A) CD4 B) CD8 C) IgM D) IgG
Basic science discoveries often lead to the development of technology, and the development of technology often leads to new scientific discoveries. Which of the following is not an accurate pairing of a technology and a discovery?
A) measurement of atmospheric CO2 and understanding of climate change B) sequencing of genomes and understanding evolutionary relationships among organisms C) genetic engineering and creation of new drugs D) invention of the microscope and creation of evolutionary trees
Mycorrhizal fungi are sometimes purposely introduced to new areas of land that are used for growing plants for commercial uses (e.g., landscaping, crop production, timber production). What would be the benefit of doing this?
A) The fungi absorb toxic pesticides from the ground. B) The fungi help facilitate horticulture, agriculture, and forestry. C) The fungi promote the evolution of new fungus species. D) The fungi prevent competitive plant species from growing.