Which of the following is true regarding conjugation?
A. The bacteria must be in physical contact
B. Most bacterial species have the ability to conjugate
C. Strains called donor strains can transfer genetic information
D. Donor strains can convert non-donor strains into donor strains
E. All of the answers are correct
E
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Ulva is a genus of algae in the phylum Chlorophyta. What characteristic does Ulva share with ferns?
A. Intercellular communication via plasmodesmata. B. The production of sperm and eggs for reproduction. C. The ability to synthesize organic nutrients using light. D. An embryonic sporophyte housed in maternal tissues. E. Vascular tissue for the transport of substances.
Glucose and fructose ____
a. form rings with the same number of carbon atoms b. have two oxygen atoms as part of their ring structure c. have identical functional groups d. contain the same number of hydrogen atoms and hydroxyl groups e. form the same polysaccharide molecule
Which of the following is a function of the human urinary system?
A) detoxification of waste products B) elimination of undigested foods C) regulation of water content for body fluids D) production of ammonia
Compare and contrast analytical, descriptive and experimental epidemiology
What will be an ideal response?