Some fully differentiated plant cells are totipotent. What does this mean?
a. They will grow roots if they touch the ground.
b. They have the potential to form a whole, fully functional plant.
c. They can fertilize an egg.
d. They can undergo meiosis.
Ans: b. They have the potential to form a whole, fully functional plant.
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Dr. John Doe, a research microbiologist for a university medical center, has been accused of sending Bacillus anthracis, the causative agent of anthrax, through the mail to the President. You, as a public health official with the CDC, have to determine if it is the same strain as the two strains of B. anthracis found cultured in his lab. Which method of identification would you use to compare these three bacterial samples?
A. Pulse-field gel electrophoresis B. Biochemical test identification C. Serological testing using agglutination D. Gram staining
Heritability studies cannot provide information about the number, location, or identity of genes involved in specific complex traits
a. True b. False Indicate whether the statement is true or false
________ saw a decrease in manufacturing employment from 1960 to 1990
A) France B) United Kingdom C) Belgium D) Sweden E) France, United Kingdom, Belgium, and Sweden
Elena and Lenski's generational experiment with E. coli demonstrated that bacteria could evolve to metabolize:
A. lactose. B. glucose. C. citrate. D. nitrogen. E. succinate.