The bacterium Alcaligenes eutrophus naturally produces polyhydroxybutyrate (PHB), a biodegradable thermoplastic. In 1992, Poirier, et al., reported in the journal Science that the two genes responsible for the production of PHB in bacteria had been introduced into the plant Arabidopsis thaliana, and it was demonstrated that the plants produced PHB. What type of vector was likely used to introduce the bacterial genes into the A. thaliana?
A. BAC.
B. YAC.
C. Ti plasmid.
D. viral vector.
E. BAC or YAC.
C. Ti plasmid.
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If an autosomal ____________________ allele is very common in a population, there is a chance that it will enter the pedigree from outside the family
Fill in the blank(s) with correct word
Which agent is capable of being reduced during both glycolysis and the Krebs cycle?
a. NAD+ b. FAD+ c. ADP d. NADH e. NADP+
Besides Darwin, the theory of evolution by means of natural selection was also independently proposed by:
A. Thomas Malthus. B. Peter Raven. C. Alfred Wallace. D. Karl Popper. E. Charles Lyell.
What is the standard method for managing the workload for fire fighters working a high-rise fire?
a. hoist, rather than carry, tools and equipment b. do not require PPE for personnel working in smoke-proof stairwells c. assign several companies to do the work normally assigned to one company d. enforce a 1:1 work time/rehabilitation time rule