Methylotrophic bacteria generate ATP by oxidizing methane to methanol then to formaldehyde, which is excreted.
Answer the following statement true (T) or false (F)
False
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A human fetus that has the genotype XO will be designated female because:
A. female sex is determined by the presence of a gene on the X chromosome. B. female sex is determined by the absence of TDF, a protein produced by a gene on the fetus's Y chromosome. C. female sex is determined by only one X chromosome. D. female sex is determined by the presence of TDF, a protein produced by a gene on the fetus's X chromosome.
Annual influenza vaccinations are important for all individuals because
A. the virus is stable so once the vaccine is administered, protection from antibodies is lifelong. B. the highly contagious nature of the virus means that transmission from a robust individual to those with a weaker immune system, such as the young or the elderly, is facilitated in crowded winter conditions. C. the oral-fecal transmission route makes it easy to pass to others. D. the vaccine prevents secondary infections in individuals with influenza.
Physical methods of microbial control include heat, cold, radiation, drying, and filtration.
a. true b. false
The incorporation of a heavy metal inducible promoter in front of RFP in the transgenic animal GloFish is an example of what?
A) a bioassay for water contamination by heavy metals B) a transgenic animal sold as a gimmick C) a transgenic fish that glows under UV light when heavy metals are absent D) an in vitro assay for water contamination by heavy metals