Which of the following are environmental stimuli that influence plant responses?
A. rocks, light, touch, music
B. water, gravity, temperature, soil minerals, microorganisms
C. wind, temperature, fungi
D. CO2, light, water vapor, gravity
E. touch gravity, herbivores, pathogens
D. CO2, light, water vapor, gravity
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Homologous genes in different species are called
A. analogs. B. paralogs. C. orthologs. D. dialogs. E. monologs.
What is the main purpose of a DNA probe?
A) cuts DNA targets B) hybridizes to a target sequence C) extend the growing polynucleotide D) binds to proteins
Koch's postulates were used to demonstrate the relationship between
A. HIV and AIDS. B. Mycobacterium leprae and leprosy. C. liver parasites and liver cancer. D. Haemophilus influenzae and meningitis. E. Haemophilus influenzae and the flu.
A superinfection results from
A) An immune system reaction to the drug. B) Decrease in most normal flora with overgrowth of an unaffected species. C) All of these choices are correct D) The wrong drug administered to the patient. E) Build up of a drug to toxic levels in the patient.